MIAMI — James Shields shook his head in frustration after allowing a walk with two outs in the ninth inning, upset that he might not get to finish a game that he dominated.

Allowed to continue by Manager Joe Maddon, Shields completed his gem with style.

Shields finished off a three-hitter by striking out Gaby Sanchez to set a new career best with 13 strikeouts, and the Tampa Bay Rays beat the Florida Marlins 4-0 Sunday to avoid a three-game sweep.

“I think I put a little stress on Joe right there by walking that guy, but he let me go out there and I commend him for that,” Shields said. “I wanted to finish it real bad.”