game during the first half in Game 2 of the Western Conference finals NBA basketball playoff series against the Memphis Grizzlies, Tuesday, May 21, 2013, in San Antonio. (AP Photo/Eric Gay)

San Antonio Spurs' Tim Duncan (21) turns to the basket against Memphis Grizzlies' Marc Gasol during the first half in Game 2 of the Western Conference finals NBA basketball playoff series, Tuesday, May 21, 2013, in San Antonio. (AP Photo/Eric Gay)

Parker had 15 points and a career playoff-high 18 assists, Duncan scored San Antonio's first six points of overtime and the Spurs bounced back after squandering a 13-point lead in the fourth quarter to beat the Memphis Grizzlies 93-89 on Tuesday night.

"I hate that we gave up that big of a lead in that situation," Duncan said. "Butflagrant foul for pulling down Tony Allen by his left arm on a fast-break layup try.

Allen hit both free throws and Memphis got possession, setting up Conley's tying basket at the end of a string of seven straight Grizzlies points.

But Memphis, which trailed by as much as 18 in the second half, could never pull ahead.

Up until the final stretch, Parker had been in control for 2½ quarters.

Parker kept San Antonio humming along after Duncan went to the bench with four fouls, the last three picked up within a span of 30 seconds, early in the third quarter. Parker provided the assist on the Spurs' first seven baskets of the second half, and then scored the next two on mid-range jumpers before getting pulled for a rest with