In the pantheon of brutally difficult things to accomplish in the National Hockey League, succeeding as a 21-or-under defenceman ranks near the top. It takes a unique combination of talent and early physical development to even bring a guy into NHL consideration at such a young age, and only a portion of this small-group can hold down regular shifts without getting killed against the world’s toughest competition. And, it’s worth remembering that a huge majority of 21-or-under players are not NHL-regulars – the junior leagues, international leagues, and American Hockey League are filled with guys still rounding out their game. There are myriad reasons why making a super-early jump as a defenceman is tougher than as a forward, but two of the big ones include expectations and exposure. Expectations at the position are tied into shot and goal suppression, and slowing down some of the world’s best players from scoring is a tall task. Exposure also makes things tricky – it’s a bit easier to insulate a young forward with at least one quality linemate, or hide the player on a third or fourth line in limited minutes. On defence, since only six defencemen play, it’s harder to hide a guy by sheer limitation of ice-time. You can run out a quality partner with the young defender, but doing so ensures that they’ll play a fair amount each game. No third-pairing minutes here. Naturally, I’m always intrigued to see how coaches bring along these players, because it varies from team to team. Believe it or not, there are only 11 regular 21-or-under defenders this season. Success has been variable. First, let’s take a quick look as to how these skaters have been deployed based on teammate quality and competition quality. For the sake of this graph and this graph only, I have omitted both Nikita Zadorov and Rasmus Ristolainen. As is always the case this season, the Sabres – by virtue of being a historically awful hockey team – distort data visualization. Just know that both players frequently play with terrible teammates and against difficult competition, and would sit far east of Morgan Rielly in the graph below. The dotted line gives us a nice first look at what the players are generally seeing on a day-to-day basis. The three names to the left (Rielly, Ceci, and Murphy) of the dotted line generally see more oppressive competition, somewhat due to the fact that they play on average or subpar teams. Severson splits the middle. On the other side, you can see that Aaron Ekblad, Dougie Hamilton, and Seth Jones are being supported by virtue of their common linemates being of higher quality than their opposition. Quality of Teammate and Quality of Competition isn’t the only way to look at how a player is being used, though. We can also look at how frequently a player starts in the offensive zone as another way to capture whether or not a playing is being insulated in his deployment. Here, we can look at Relative Offensive Zone Start% -- players above 0.0% start more shifts in the offensive zone relative to the team norm, players below 0.0% start less shifts in the offensive zone relative to the team norm. We know from the first graph that Morgan Rielly, Connor Murphy, and Cody Ceci were seeing significantly tougher competition than teammate quality. Here, only Cody Ceci sees tough deployment as it pertains to offensive zone start numbers – he sees fewer shifts than the regular Ottawa Senator in terms of starting in the offensive zone; Morgan Rielly and Connor Murphy, on the other hand, see more shifts than the regular player from their respective teams. The two other names that pop from this table are Damon Severson (brutal zone starts) and Aaron Ekblad (lofty zone starts). At this point, we can start to draw conclusions about a handful of players, and use it to craft future analysis: Damon Severson, Cody Ceci, are in pretty tough spots for young defenders, and Morgan Rielly – by virtue of team effects – isn’t far behind. Aaron Ekblad and Seth Jones are well protected. Both Buffalo Sabres guys are getting killed by their team, but Rasmus Ristolainen sees much more difficult deployment than Nikita Zadorov. Through this, we can contextualize to some degree the performance of each player by their raw Corsi% numbers. For each of the eleven skaters, I pulled each team’s Corsi% with the player on the ice, and each team’s Corsi% with the player off of the ice. We know Seth Jones and Aaron Ekblad are being put in positions to really succeed, so we expect the team to have a better Corsi% with them on the ice than off. For both players here, that’s true, though the data seems to suggest Seth Jones is having a more favourable impact than Aaron Ekblad in fairly comparable minutes. This graph is the most damning for Connor Murphy. Recall that Murphy has been given plenty of offensive zone starts, and he isn’t experiencing the kind of competition/teammate disparity that the two Sabres’ skaters, Morgan Rielly, and Cody Ceci are. Despite that, the Arizona Coyotes are significantly better with him off of the ice. Who is the player with the most encouraging underlying numbers? Damon Severson. Severson’s numbers and deployment are somewhat to comparable to that of Cody Ceci and Morgan Rielly, but both of those players had significant NHL-experience last season. Severson’s a full-blown rookie. For that reason, New Jersey should be thrilled about what they have found in their 2012 second-round pick. Carolina Hurricanes Gear . Trailing by a goal after 20 minutes of play, Joe Pavelski responded with three goals and an assist as the Sharks snapped a two-game losing skid with a 5-2 victory over the struggling Edmonton Oilers on Tuesday. Andrei Svechnikov Jersey . -- The Los Angeles Angels have agreed to a minor league contract with reliever Brandon Lyon that includes an invitation to their big league camp for spring training. http://www.officialhurricanesfanstore.com/authentic-jake-bean-hurricanes-jersey/ . Both moves were announced Tuesday. The Titans had waived Matthews on Saturday when they promoted wide receiver Michael Preston from the practice squad. Petr Mrazek Jersey . -- First baseman Carlos Pena and outfielder Brennan Boesch have signed minor league deals with the Los Angeles Angels. Jordan Martinook Jersey . -- Kyle Busch edged teammate Joey Logano at the Bristol Motor Speedway finish line Friday night to become the all-time winningest driver in Nationwide Series.PITTSBURGH -- Toronto Blue Jays manager John Gibbons said he sat awake in his hotel bed Saturday night, thinking about his bullpens recent problems. He even addressed his group of relievers Sunday morning. Dustin McGowan made those worries a nonfactor, at least for a day. McGowan pitched three-hit ball for seven innings, Colby Rasmus hit a grand slam and Melky Cabrera added a two-run homer as the Blue Jays beat the Pittsburgh Pirates 7-2. "We had to have that one," Gibbons said. McGowan (2-1) allowed one run, striking out five and throwing 101 pitches. It was the second consecutive quality start for McGowan, a diabetic who started wearing an insulin pump on the mound in his last start. "My blood sugar still gets erratic sometimes," he said. "But thats part of the game for me. With the adrenaline going and everything, it does what it wants to do. I cant control it sometimes." McGowan eclipsed the 100-pitch mark for the first time since June 27, 2008. "Thats two outings wearing that pump," Gibbons said. "Maybe theres something to that." It was just the fourth win in 13 games for Toronto, which prevented the Pirates from completing their first series sweep of the season. Pirates manager Clint Hurdle and first base coach Rick Sofield were ejected by plate umpire Greg Gibson at the end of the fourth inning for arguing a called third strike on Jordy Mercer. The strikeout stranded two runners and ended the inning. "I think it was pretty apparent that the low strike wasnt going to come into play," Hurdle said. "But the fact of the matter was it got to a point where I felt a pitch that hadnt been called a strike all day got called a strike in, for me, a very pivotal at-bat for us." Rasmus connected in the second inning for his fourth career slam. He also doubled and singled. The Blue Jays held on to this early lead. Toronto wasted a 5-3, ninth-inning edge in the series opener and a 5-0, fourth-inning advantage on Saturday night. Josh Harrison hit two triples for the Pirates. Edinson&nnbsp;Volquez (1-3) gave up six runs and seven hits in five innings.dddddddddddd. He also allowed six earned runs in his last outing April 21 against St. Louis. Volquez pitched himself into a jam in the second inning before Rasmus stepped to the plate, issuing walks to Edwin Encarnacion and Juan Francisco to start the inning. Brett Lawrie reached on an infield single to load the bases with no outs. Rasmus hit a full-count curveball about 10 rows deep in the right-field seats for his seventh home run of the season, giving the Blue Jays a 4-1 lead. Rasmus said he was not necessarily looking for an offspeed pitch in that situation. "I was just trying to be out over the plate and throw my hands at anything because hes got a good changeup, good curveball and a good two-seamer, and he already tried to thumb me a couple in," he said. "I was just trying to be ready to put something in play." The slam negated an early lead the Pirates built on Neil Walkers groundout, scoring Harrison after his triple. Harrison also tripled in the eighth and scored on Andrew McCutchens sacrifice fly. Torontos Jose Bautista walked in the fifth to reach base in his 31st consecutive game, the longest active streak in the majors. But he went hitless, snapping a career-best 13-game hitting streak. Cabrera had three hits, and extended Torontos lead to 6-1 with a two-run homer off Volquez in the fifth. Rasmus scored another run in the eighth on an RBI single by pinch-hitter Dioner Navarro. NOTES: Highly regarded Blue Jays RHP Marcus Stroman made his big league debut, allowing one earned run and one hit while getting two outs. The Blue Jays selected the 23-year-old Stroman Triple-A Buffalo and optioned OF Anthony Gose. ... The Pirates plan to recall LHP Jeff Locke to start against San Francisco on Monday night. An All-Star last year, Locke struggled in the second half of 2013 and did not make the Pirates opening day roster. ... J.A. Happ (0-0, 4.15) is scheduled to pitch for the Blue Jays at Philadelphia on Monday night. 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