Memphis Grizzlies Shane Battier (L) and San Antonio Spurs Manu Ginobili battle for a loose ball during the first half of Game 2 of the Western Conference NBA basketball playoffs in San Antonio, Texas April 20, 2011. REUTERS

LOS ANGELES, April 20 - The San Antonio Spurs came from behind to level their first round playoff series with the Memphis Grizzlies at 1-1 with a 93-87 win on Wednesday while the Oklahoma Thunder went 2-0 up over Denver.

The Spurs, top-seed in the Western Conference, trailed by three points at half-time but inspired by Argentine shooting guard Manu Ginobli who top scored with 17 points, they grabbed a one-point lead by the end of the third.

There was a late scare for the Spurs when Sam Young, who top scored for the Grizzlies with 17 points, made a three-point shot to bring Memphis within two points with less than 15 seconds remaining.

But San Antonio kept their cool and George Hill made sure of the win with four points with free throws.

All-Star Ginobli missed the opening game of the series through injury but his return was crucial with him contributing seven rebounds and four assists while Richard Jefferson, Tim Duncan and Hill all scored 16 points each.

The Thunder comfortably took a 2-0 lead in their series against the Denver Nuggets with Kevin Durant scoring 23 points and Russell Westbrook scoring 21 in the 106-89 win.

The Thunder took charge from the outset and had a 26-point lead early in the second quarter as they secured their second win before the series moves to Denver on Saturday for Game Three.

Although Denver, with Ty Lawson making 20 points, reduced the deficit to 10 during the fourth quarter, the outcome was never in doubt.

The Los Angeles Lakers were playing the New Orleans Hornets later on Wednesday - trailing 1-0 in the series.