July 13, 1991 - Orioles pitchers combine to throw no-hitter against A's!

On July 13, 1991 Bob Milacki, Mike Flanagan, Mark Williamson, and Greg Olsen teamed up to pitch a no-hitter against the Oakland Athletics. Milacki pitched the first six innings while Flanagan, Williamson, and Gregg each pitched one inning in that order. The Orioles won the game 2 -0.