BOSTON -- Midway through the third inning Sunday, Robinson Cano walked off the field at Fenway Park complaining of dizziness.

Turns out, Cano was only sick, not injured.

"I just feel like I have the flu," Cano said after the Mariners' 8-6 victory and first-ever three-game sweep of the Red Sox at Fenway Park. "I got dizzy out there. I feel a little bit better now. Hopefully, I should be OK for tomorrow."

First baseman Logan Morrison missed Saturday's game because of an illness but was able to play Sunday.

The Mariners believe Cano could return to the lineup Monday when they open a series against the Texas Rangers at Safeco Field.

The Red Sox were batting in the third inning when Cano left his second base position and gestured to Mariners manager Lloyd McClendon, who met him midway across the infield and walked him to the dugout.

"Robbie had a little viral thing that Morrison had," McClendon said. "That seemed like it was just a 24-hour bug, so hopefully he's OK tomorrow."

The Mariners, who are vying for a wild-card berth in the American League, can ill afford to lose Cano, who is second in the league with a .326 batting average. Cano also has 11 homers and 70 RBIs, numbers that make him a candidate for the AL Most Valuable Player award.