The weekend slate of MLB games has been mixed up a bit. Teams have shuffled their pitching rosters in order to get their aces an extra start before the All-Star break. Messing up a pitcher’s routine is a great way to submarine his betting value.

Tim Lincecum already got hosed when he had to pitch Tuesday instead of Wednesday and the Giants lost 7-0 to the Mets. He’s got the assignment on Sunday afternoon at Wrigley against Ryan Dempster and the Cubs.

Meanwhile, Dustin McGowan’s rotator cuff injury puts the Blue Jays under the gun this weekend. Brian Tallet has to go into Yankee Stadium Sunday after throwing 17 pitches in relief Thursday. Tough assignment.

We’ve also got Homer Bailey coming up from the minors to pitch Sunday for the Cincinnati Reds in place of Aaron Harang. Bailey has a 4.31 ERA and a 1.45 WHIP in 15 starts for AAA-Louisville. His opponents: CC Sabathia and the Brewers.