Red Sox designated hitter David Ortiz covers his eyes as he celebrates after clinching the AL East title, despite losing 5-3 to the Yankees Wednesday night. Associated Press/Frank Franklin II

Boston's Mookie Betts reacts after hitting a two-run double in the eighth inning. Associated Press/Frank Franklin II

The Boston Red Sox celebrate after clinching the AL East. Associated Press/Frank Franklin

Red Sox reliever Joe Kelly reacts after New York's Mark Teixeira hits a grand slam home run in the ninth inning. Associated Press/Frank Franklin II

New York Yankees' relief pitcher Tyler Clippard celebrates in the bullpen as Boston right fielder Mookie Betts looks on and center fielder Jackie Bradley Jr. hangs over the bullpen wall after Mark Teixeira hit a ninth-inning, walk-off grand slam. Associated Press/Kathy Willens

Red Sox Manager John Farrell responds to questions as his team celebrates clinching the AL East title. Associated Press/Frank Franklin II

New York's Mark Teixeira reacts after hitting a ninth-inning, walk-off grand slam. Associated Press/Kathy Willens

The Sox lost to the Yankees in stunning fashion, but there was still time to celebrate because Boston won the AL East title when Baltimore beat Toronto. Associated Press/Frank Franklin II

David Ortiz celebrates with teammates after the Red Sox won the AL East title. Associated Press/Frank Franklin II

Reliever Koji Uehara celebrates after the Red Sox clinched the AL East title. Associated Press/Frank Franklin II

Robbie Ross Jr., left, and Aaron Hill celebrate with teammates after the Red Sox clinched the AL East title. Associated Press/Frank Franklin II

A fan holds up a sign proclaiming the Red Sox the AL East champions. Associated Press/Kathy Willens