Given how scary it looked, it's amazing that John Lannan is not more seriously injured. Lannan, of course, took a line drive from Ty Wigginton right off the side of his face, and had to leave the game immediately. He should feel very fortunate that he is merely day-to-day and is not expected to miss any starts because of the All-Star Break.
In case you missed the play on Friday night, here's video of it. Below the jump, some screenshots.