It wasn't planned for San Antonio guard Mike Bratz to take the last shot of the game tonight, but he did with five seconds left and it was the game-winner in the Spurs' 99-97 NBA playoff victory over the Seattle SuperSonics.

San Antonio, which had rallied from a 21-point deficit, took the ball inbounds with 28 seconds left after a timeout and the score tied at 97.

"We wanted Mike Mitchell on the pick and then Dave Corzine on top of the key," Bratz said.

But the Sonics stripped the ball from George Gervin. Mark Olberding dived for the ball and flipped it to Bratz, open for an 18-footer with one second left on the shot clock.

It was Bratz's only basket in 12 minutes of play. He missed his first two shots.

"Mark came up the the loose ball and I was fortunate to hit the shot," said Bratz, a fourth-year guard out of Stanford.

The victory enabled the Spurs to take a 2-1 lead in the Western Conference semifinal series. The fourth game is to be played here Sunday. The SuperSonics have won only one of 14 games played here since the Spurs entered the league in 1977.

Seattle's all-star guard, Gus Williams, missed a hurried jump shot from the free-throw line just before the final buzzer that would have sent the hard-fought game into overtime.

Gervin, the league's leading scorer, had a game-high 36 points, 16 in the third period when the Spurs got back into contention.