Kawhi Leonard's lockdown defense frustrated Lance Stephenson to no end

It doesn't take much to push Lance Stephenson over the edge. You can add Kawhi Leonard's suffocating defense to the list of things that will trigger Stephenson.

During the second quarter of the San Antonio Spurs' lopsided win over the Memphis Grizzlies in Game 1, Leonard -- the reigning Defensive Player of the Year -- displayed some impressive denial defense on Stephenson.

It was so good that the Grizzlies couldn't get Stephenson the ball, which left him totally frustrated -- like many of the Memphis players Sunday.