8th inning 2 outs R1 on first steals second.....
I've seen the replay and the only thing I can think off is that he was blocked by Cano the second baseman and couldn't see the base. However there is one camera angle that was shown from his view point and from the angle shown I can't see how he missed it. To add insult to injury the next batter blooped one to right and the Mariners tie the game then Mariano gives up a dinger in the 9th. Yanks lose,
I bet he is glad it was the last game of the series and not the first.
http://sports.espn.go.com/mlb/recap?gameId=270507110
-g