Grey's Clipboard: Why has Wang struggled lately?

Chien-Ming Wang teased us.

He won six of his first seven starts, posting a 3.00 ERA in the process, and we can be forgiven if we thought the pitcher who had won 19 games in each of the previous two seasons would finally crack the 20-win barrier and put up a career-best season.

Of course, he might still do that (not the 20 wins, but career-bests in ERA, WHIP and strikeouts for fantasy players), but Wang's momentum came to a screeching halt, giving up five runs or more in each of his past four outings.