When the Los Angeles Angels traded for Zack Greinke a few days before the trade deadline, they figured they were getting an ace who would help them make a spirited charge at the first-place Texas Rangers.
Things haven't exactly gone according to plan. Instead of making a charge, the Angels have retreated since they acquired Greinke.
The Angels have lost all three of the starts Greinke has made for them, and their deficit in the AL West has doubled from four games to eight games.
The question is no longer whether or not they'll be able to catch the Rangers. The question now is whether or not they'll make the postseason at all.
It goes without saying that they need Greinke to shape up in order to have a shot at securing a wild-card berth, and there's no time like the present for Greinke to get back on the right track. He has two starts lined up this week, and the Angels need him to make the most of them.
Greinke isn't the only big-name player in the American League who needs to come through with a big week. Here's a look at a few more.
Note: All stats come from Baseball-Reference.com unless otherwise noted.