Neal hit the tying three-pointer at the end of regulation, and the Spurs surged in overtime for a 110-103 win over the Grizzlies to send this Western Conference quarterfinal series to a sixth game.
San Antonio, still in danger of becoming the first top-seeded team to lose a best-of-seven series in the first round, is behind 3-2 to the No. 8 seeded Grizzlies. Game 6 is Friday night in Memphis.
Zach Randolph had 26 points, 11 rebounds and six assists for the Grizzlies, who also got 20 points from Mike Conley. Marc Gasol added 11 points and 17 rebounds, but his air ball led to a 24-second violation in the last minute of overtime.