Rozsival, banged up in each of the first two games of the playoff series against Buffalo, fired a shot from just inside the blue line 16:43 into the second overtime Sunday to lift the Rangers to a 2-1 victory over the Sabres.
Buffalo still leads the Eastern Conference semifinal series 2-1, but the Rangers can get even with a Game 4 victory Tuesday night in Madison Square Garden.
Jaromir Jagr gave the Rangers a 1-0 lead in the second period, but the Sabres tied it late in the third when Daniel Briere finally took advantage of a slew of Buffalo power plays.
After that, it was a goaltending duel between Henrik Lundqvist and Sabres counterpart Ryan Miller. Lundqvist stopped 38 shots and became a winner when Rozsival beat Miller with the Rangers' 46th shot.
That was enough to end the Sabres' five-winning streak against the Rangers and their five-game run overall in the playoffs against New York's Islanders and Rangers.