Conference champions in the regular season, the Windsor Spitfires and Barrie Colts are dominating the Ontario Hockey League playoffs as well.
The Western Conference champion Spitfires overcame a 71-save performance from Plymouth goaltender Scott Wedgewood on Wednesday and completed a sweep of the Whalers with a 3-2 overtime win.
Not to be outdone, the East champion Colts downed Brampton 5-2, completing a four-game sweep of the Battalion.
Both teams improved to 8-0 in the playoffs as they roared their way into their respective conference finals, and the two powers seemed poised to collide in the OHL final barring an upset in the next round.
In other OHL action, Kitchener outlasted London 8-7 in a shootout.
At Plymouth, Mich., Scott Timmins scored the winning goal for Windsor 6:50 into overtime.
The Spitfires will play the winner of the West semifinal between Kitchener and London. That series is tied 2-2 with Game 5 going Thursday in London.
Wedgewood was thrust into the starter's role when Matt Hackett was suspended after a incurring a match penalty for roughing in Game 3 Monday night in Windsor.
Ryan Hayes and Joe Gaynor, two of Plymouth's overage skaters playing in their last OHL game, scored to give the Whalers a 2-0 lead going into the third period.
Adam Henrique scored a power-play goal early in the third for Windsor and then Greg Nemisz tied the game at 19:41 of the third period with goaltender Philip Grubauer off for an extra attacker.
Grubauer finished with 19 saves for the Spitfires, who swept their second straight playoff series.
At Brampton, Ont., Stefan Della Rovere scored twice and added an assist for the Colts.
Darren Archibald opened the scoring for Barrie, beating Patrick Killeen at 5:56 of the first period.
Sean Jones tied the game for the Battalion at 8:00 of the first, sending both teams to the locker room tied at a goal apiece after 20 minutes.
Bryan Cameron put the Colts back in front 48 seconds into the second period with a power-play goal before Colin Behenna made it 3-1 just over three minutes later.
Della Rovere rounded out the scoring in the second period at 9:58, giving Barrie a comfortable 4-1 lead after 40 minutes.
Dominic Alberga curbed the deficit to 4-2 at 2:01 of the third before Della Rovere rounded out the scoring with his second goal of the night at 7:47.
Killeen stopped 19 of 24 shots while Barrie's Mavric Parks turned aside 27 of the 29 shots sent his way.
The Colts will play the winner of the Mississauga-Ottawa series in the Eastern Conference final. That series is tied at two games apiece with a pivotal Game 5 Thursday in Ottawa.
Rangers 8 Knights 7 (OT)
At Kitchener, Ont., Jason Akeson scored 2:09 into overtime as the Rangers outlasted London.
Jeff Skinner had three goals while John Moore added two goals and three assists for the Rangers.
Michael Catenacci, with a goal and two assists, and Ryan Murphy had the other Kitchener goals.
Nazem Kadri had two goals and an assist for London, while Colin Martin had a goal and two assists. Pieter Schinkelshoek, Tyler Brown and Stephen Sanza also scored.