The Mariners stun the Twins with a 10-run seventh inning, coming back from a 6-0 deficit in an eventual 11-6 victory at Safeco Field. With six runs driven in, Raul Ibanez, who hits a grand slam and a two-run single in the frame, establishes a club record for RBIs in one inning, one more than Ken Griffey Jr.’s mark set in 1999.

During a Brewers’ 6-3 loss to the Reds at Great American Ball Park, first baseman Prince Fielder confronts starting pitcher Manny Parra in the dugout, shoving the hurler twice after an angry exchange of words. The Milwaukee hurler had taken a no-hitter into the fifth, but gave up six runs on four hits and four walks before leaving the game for a pinch hitter in the seventh inning.

At the start of the rain delay during the Astros and Cubs game at Wrigley Field, fans are advised to take cover in the concourse due to a tornado warning being issued by the National Weather Service for downtown Chicago. The game resumes in 2 hours, 45 minutes, but approximately an hour later more thunder and lightning and another 39-minute stoppage cause the contest to be called in the bottom of the eighth, with Houston credited with a 2-0 rain-shortened victory.