With World Cup training camps opening Monday, we're Zach Norvell Jr. Jersey getting our first look at the ideas the coaches have for line combinations and defense pairings. In these best-on-best tournaments, seeing combos featuring some of the best talent the league has to offer and how they mesh with each other is among the more fascinating things to follow. Canada coach Mike Babcock probably has the best job of anybody when it comes to putting together these fantasy combinations. When you see what Canada's fourth line looks like, your jaw might hit the floor. Meanwhile, other coaches have tougher jobs to make sure they get the mix just right, like Todd McLellan and the young Team North America (he's off to a really strong start). It's only been one day of practice, but these teams need to come together in a hurry. There will probably be tweaks over time, but here's your first look at the line combos and defense pairings for most of the teams competing in the World Cup, which begins Sept. 17. Note: Team Europe had a limited practice Monday as players return from Olympic qualifying tournaments overseas, so there are no line combos yet. Tyler Seguin and Jonathan Toews go from opponents in the NHL to linemates at the World Cup. USATSI Canada Forward lines via : Brad Marchand - Sidney Crosby - Patrice Bergeron Logan Couture - Jonathan Toews - Tyler Seguin John Tavares - Ryan Getzlaf - Steven Stamkos Matt Duchene - Claude Giroux - Joe Thornton Corey Perry Defense pairings via : Jake Muzzin - Drew Doughty Marc-Edouard Vlasic - Shea Weber Alex Pietrangelo - Brent Burns Jay Bouwmeester Quick analysis: Canada has 10 natural centers on their roster, which gives them a lot of flexibility in how they structure their lines. When you look at the lines as they've been devised, it's hard to see any way in which Canada doesn't steamroll this tournament. Look at their "bottom six" forwards. Not fair. USA Forward lines via Max Pacioretty - Joe Pavelski - Patrick Kane Zach Parise - Derek Stepan - Blake Wheeler Justin Abdelkader - Ryan Kesler - T.J. Oshie James van Riemsdyk - David Backes - Brandon Dubinsky Kyle Palmieri Defense pairings : Ryan Suter - Dustin Byfuglien Ryan McDonagh - John Carlson Jack Johnson - Matt Niskanen Erik Johnson Quick anlysis: Tortorella said the lines could change, but when you look at the disparity between USA's bottom six and Canada's bottom six, the talent gap is abundantly clear. USA is hoping their more defensive-minded forwards like Dubinsky, Kesler, Backes and Abdelkader will make it harder on Canada's forward group, but it's a big gamble. There's not a lot of flexibility if USA needs to boost scoring. On defense, the top two pairings look really strong on paper at least. North America Forward lines via Jonathan Drouin - Connor McDavid - Mark Sheifele Johnny Gaudreau - Jack Eichel - Brandon Saad Nathan MacKinnon - Ryan Nugent-Hopkins - Dylan Larkin J.T. Miller - Sean Couturier - Auston Matthews Vincent Trocheck Defense pairings via : Morgan Rielly - Aaron Ekblad Shayne Gostisbehere - Jacob Trouba Ryan Murray - Seth Jones Colton Parayko Quick analysis: You have to really like the way North America is structured. They have so much speed throughout their lineup and that will be one of the key a sets. That top six is going to give opposing defenses fits, while MacKinnon and Larkin together gives this team two of the league's most explosive skaters on one unit. I'd expect to see some jumbling on defense just so they can find the right mix, but this is a good start. Finland Forward lines via Patrik Laine - Aleksander Barkov - Olli Jokinen Mikael Granlund - Mikko Koivu - Joonas Donskoi Teuvo Teravainen - Valtteri Filppula - Jori Lehtera Lauri Korpikoski - Erik Haula - Leo Komarov Sebastian Aho Defense : Olli Maatta - Rasmus Ristolainen Jyrki Jokipakka - Sami Vatanen Esa Lindell - Ville Pokka Sami Lepisto Quick analysis: The Finns are handing the keys over to the kids. Barkov and Laine will be looked to as the league's top scorers, while they'll have to hope their second and third lines can help with some secondary scoring. Finland's transition from the old guard to the new is most evident on defense where we're used to seeing guys like Kimmo Timonen and Sami Salo every single year. Defending as a team could be the key for this group. Ru sia won't be splitting up Alex Ovechkin (center) and Evgeny Kuznetsov (92) at the World Cup. USATSI Ru sia Note: Ru sia's four KHL players did not skate in Monday's practice, so these lines are likely to be altered some. Forward lines : Alex Ovechkin - Evgeny Kuznetsov - Nikita Kucherov Nikolay Kulemin - Evgeni Malkin - Vladimir Tarasenko Artemi Panarin - Artem Anisimov - Vladislav Namestnikov Did not practice: Pavel Datsyuk, Ivan Telegin, Vadim Sipachyov and Evgeny Dadanov Defense : Dmitry Orlov - Nikita Zaitsev Alexei Emelin - Andrei Markov Dmitry Kulikov - Alexey Marchenko Nikita Nesterov Quick Analysis: If there's one change we can probably count on, it's Kulemin sliding down the lineup. Look for Shipachyov or Datsyuk to jump in with that unit. Other than that, it's what you'd expect. Ru sia is going to have a dynamic scoring attack and a moderately concerning defense. Up front, they're definitely an exciting group. Sweden Forward lines via : Daniel Sedin - Henrik Sedin - Loui Erik son Filip Forsberg - Nicklas Backstrom - Patric Hornqvist Jakob Silfverberg - Marcus Kruger - Carl Hagelin Gabriel Landeskog - Carl Soderberg - Rickard Rakell Mikael Backlund Defense pairings not available Quick analysis: Sweden's defense pairings weren't recorded today, but regardle s of structure, their blue line is going to be solid led by Erik Karl son and Victor Hedman. Forward structure is far more important at this point after losing Henrik Zetterberg and Alexander Steen. The top six still looks pretty strong, with some interesting work among the bottom six. Look for that Kruger line to see a lot of tough matchups to try and free up those more offensively-talented units. Czech Republic Forward lines via : Roman Cervenka - Tomas Plekanec - Jakub Voracek Ondrej Palat - Martin Hanzal - David Pastrnak Ales Hemsky - Radek Faksa - Michael Frolik Milan Michalek - Vladimir Sobotka - Dmitrij Jaskin Michal Birner Defense pairings not available Quick analysis: The Czechs are doing the best they can with what they've got. Losing David Krejci and Tomas Hertl up front is pretty well devastating. They have some offensive talent, but not to the degree other teams boast in this tournament. On the back end, they also just lost Radko Gudas from an already thin group. There's going to be a lot of pre sure on their goalies to steal games for them. Justin Holiday Jersey