Marc Gasol scored 20 points and Memphis made all six of its free-throw attempts in the final 63 seconds to beat Oklahoma City 87-81 in game three of their NBA playoff second round series.
Gasol scored 16 of his points in the second half on Saturday for the Grizzlies, who retained home court advantage by taking a 2-1 lead in the best-of-seven Western Conference series.
Gasol attempted just four shots in the first half and finished six-of-14 from the field in front of a crowd of 18,119. The Spaniard, who was named the NBA's defensive player of the year last month, drained eight of his nine free-throw attempts and pulled down nine rebounds.
The game was tied at 81-81 after Oklahoma City's Derek Fisher drained a three-pointer with 1:58 remaining in the fourth quarter.
The Thunder's Kevin Durant scored 25 points, but Durant, a 91 percent free-throw shooter during the regular season, missed two key free-throws with 39 seconds left.
Success at the foul line proved crucial as the Grizzlies made all six of their attempts in the final 1:03 to put the contest away.
Tony Allen and Mike Conley added 14 points apiece for Memphis in the win. Zach Randolph had just eight points on four-of-12 shooting.
Game four is on Monday in Memphis.