Flynn scores winner as Canadiens take wild Game 1, 4-3 over Senators; Subban ejected

Montreal Canadiens defenseman P.K. Subban (76) argues with referee Dave Jackson after receiving a game misconduct during the second period of Game 1 in an NHL hockey first-round playoff series against the Ottawa Senators on Wednesday, April 15, 2015, in Montreal. (Ryan Remiorz/The Canadian Press via AP) (The Associated Press)

Ottawa Senators right wing Mark Stone (61) is checked into Montreal Canadiens goalie Carey Price (31) by Montreal Canadiens center Tomas Plekanec (14) and Montreal Canadiens defenseman Andrei Markov (79) during second period of the NHL Stanley Cup first round playoff hockey action Wednesday, April 15, 2015, in Montreal. (Ryan Remiorz/The Canadian Press via AP) MANDATORY CREDIT (The Associated Press)

MONTREAL – Brian Flynn scored a tie-breaking goal late in the second period and the Montreal Canadiens held on to edge the Ottawa Senators 4-3 on Wednesday night in a wild opening game of their first-round playoff series.

Flynn also had two assists for the first three-point game of his career.

Tomas Plekanec and Torrey Mitchell scored 15 seconds apart in a frenetic second period that saw five players get goals in less than five minutes. Lars Eller scored short-handed as part of the barrage.

Mika Zibanejad and Kyle Turris got power-play goals in the middle period for the Senators. Milan Michalek was credited with the game's first goal, which Montreal's Andre Markov tipped into his own net 12 minutes in.

Canadiens star defenseman P.K. Subban was given a five-minute major and game misconduct after slashing Ottawa rookie Mark Stone in the wrist midway through the second period.