Tuomas Iisalo believes pressure is on the Oklahoma City Thunder to beat the Memphis Grizzlies in Round 1 playoff series.

The Memphis Grizzlies are choosing to convey solid messages, not overreactions, after getting overrun by the OKC Thunder in record-breaking fashion.

Aaron Wiggins scored 21 points off the bench and Jalen Williams added 20 as the Oklahoma City Thunder earned a 131-80 home rout of the Memphis Grizzlies in Game 1 of their Western Conference playoff series on Sunday.

Shai Gilgeous-Alexander had a quiet 15 points and five assists. Jalen Williams had 20 points and six assists. Chet Holmgren finished with 19 points and 10 rebounds. Aaron Wiggins scored 21 points off the bench. Isaiah Hartenstein tallied 14 points and eight rebounds.

The Grizzlies struggled to get anything going against Oklahoma City's stingy defense. Star point guard Ja Morant had 17 points on 6-of-17 shooting. Marvin Bagley added 17 points off the bench on 8-of-8 shooting, the team's lone bright spot.

The Thunder beat the Grizzlies 131-80 in Game 1 of their playoff series, the fifth-biggest margin of victory in NBA postseason history.