MEMPHIS, Tenn. (AP) – Darrell Arthur and Zach Randolph scored 21 points each and the Memphis Grizzlies took advantage of poor ball handling by San Antonio to defeat the Spurs 109-93 on Tuesday night.

Tony Allen added 20 points, missing only one of his nine shots, and Mike Conley had 18 points and nine assists as Memphis won its season-best fifth straight home game.

Gary Neal was the only Spur to finish in double figures with 14 points. Starters Tim Duncan, Manu Ginobili and DeJuan Blair had nine points apiece, as they sat out the fourth quarter.

The Spurs (49-11) were playing their first game without starting point guard Tony Parker, who is expected to miss two to four weeks after suffering a strained left calf when the Spurs beat Memphis 95-88 on Saturday night.

San Antonio committed 22 turnovers in the game, one short of its season high.

The victory kept Memphis in the Western Conference's last playoff spot. If the season ended today, the Grizzlies would face the Spurs, who own the best record in the NBA, in the opening round of the postseason.

Memphis led 61-52 at the half as Randolph scored 13 points, and Allen added 10, part of Memphis shooting 61 percent.

San Antonio managed to hit 56 percent of its shots.

But the Spurs were uncharacteristically fumbling the ball without Parker to run the show. Memphis built the lead to 11 points with about 8 minutes left in the half after the Spurs' ninth turnover.

San Antonio, which averages slightly more than 13 turnovers a game, already had 14 at the half, including five by George Hill, filling in for Parker. Those mistakes led to a 16-4 Memphis advantage in fastbreak points for the half. Hill ended the night with six turnovers, and the Grizzlies held a 27-11 advantage in fastbreak points.

But Memphis had its own problems in the first half, particularly when starting center Marc Gasol was ejected after receiving his second technical of the game with 5:12 left before intermission.

The turnover problems continued to plague the Spurs after halftime helping Memphis stretch its advantage to as many as 16 points. San Antonio didn't have anyone reach double figures until Neal's 12-foot floater with 1:50 left in the third period.

Memphis had matched its biggest lead of the game at the end of the third, carrying an 83-67 into the fourth.

Arthur hit a pair of jumpers to open the fourth as the lead reached 87-67, and Memphis continued to build the advantage as the Spurs starters watched from the bench.