TAMPA, Fla. (AP) _ Michal Grosek scored with 2:34 left in overtime as the Buffalo Sabres beat the Tampa Bay Lightning 3-2 Sunday night.

Grosek's backhander appeared to hit off Tampa Bay defenseman Ben Clymer and went past Lightning goalie Dan Cloutier.

Tampa Bay's Petr Svoboda had tied the game at 2 midway through the third period. Svoboda scored on a slapshot from the blue line during a power-play.

Vincent Lecavalier assisted on Svoboda's goal and has two goals and five assists during a four-game point streak.

Buffalo rookie Maxim Afinogenov, who has five goals and four assists in nine NHL games, broke a 1-1 tie with a blast from the left-circle with 83 seconds left in the second period.

Richard Smehlik snapped a 23-goal-scoring drought as he put the Sabres up 1-0 in the first period.

Robert Petrovicky tied the game at 1 at 7:27 of the second period.

Cloutier stopped 25 of the 27 shots he faced.

The Lightning, who entered with the NHL's third-ranked power play unit at home, went 1-for-9 with the advantage.

The Sabres were unsuccessful on four power-plays and have just two man advantage goals in their last 61 chances against Tampa Bay.