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Flames' Andre Roy racked up 83 penalty minutes in 44 regular-season games. ((Larry MacDougal/Canadian Press))

Whether or not the Calgary Flames take a 3-2 series lead over Chicago in their Western Conference quarter-final on Saturday, it'll be out of Andre Roy's control.

The National Hockey League suspended the Flames' tough guy Thursday for one game and fined him $2,500 US — the maximum allowed under the collective bargaining agreement — for bumping Blackhawks defenceman Aaron Johnson in Wednesday's pre-game warmup.

Roy has yet to record a point in two games in this year's post-season after scoring three goals in the regular season and racking up 83 penalty minutes in 44 contests.

Calgary drew even in the best-of-seven first-round series with a 6-4 victory at the Saddledome.

Forward Eric Nystrom broke a 4-4 stalemate with 6:56 remaining in regulation before a red-clad, capacity crowd of 19,289.

"Now the series is zero-zero again," said Nystrom, the son of former New York Islanders playoff hero Bob Nystrom.

Miikka Kiprusoff kicked aside 28 of 32 shots in the Flames' net, while Kris Versteeg had one goal and two assists for the fourth-ranked Blackhawks.

"It is going to be a long flight home [Thursday]," Blackhawks captain Jonathan Toews said after the game. "It is far from over.

"It is frustrating and, yes, we were up two games and you can cry about that all day about having those first two games and then letting them have the last two and letting them get back in the series.

"But we knew they weren't going anywhere, so we're just going to have to battle and get momentum swinging back in our favour a little bit."

Game time Saturday at Chicago's United Center is 9 p.m. ET.

With files from The Canadian Press