Shai Gilgeous-Alexander missed his first game of the season with a right wrist sprain as the Thunder fell short to the Mavericks on Friday night.

Kyrie Irving scored 25 points, Spencer Dinwiddie and P.J. Washington Jr. added 16 apiece and the Dallas Mavericks beat Oklahoma City 106-98 as Thunder All-Star Shai Gilgeous-Alexander missed his first game of the season.

Kyrie Irving — an expert in rivalries — agreed that the Thunder and Mavericks have become arch-nemesis. “It’s personal. I think it’s the start of a healthy rivalry," Irving said. "... We’re gonna be seeing them a lot over the next few years so it’s good that you set the precedent now what it’s gonna be like.

That decision forced the Thunder to stick close to the Mavericks' role players throughout the first quarter. Once Washington scored the first five points, Irving asserted himself and drained a 3-pointer before finishing at the basket with a finger roll to give the Mavericks an early 10-0 lead.

Kyrie Irving got brutally honest on the Mavericks' brewing rivalry with the Thunder after Friday night's game.