Alex Rodriguez AlexPoker200.jpg Last weekend he was reportedly sneaking off to the Hamptons for a rendezvous with Madonna, but we know where Alex Rodriguez spent this weekend: At a poker table!

Saturday night, X17online spotted the Yankee's slugger in the high stakes poker section at LA's Commerce Casino.

A-Rod was playing $10/$20 No-Limit Texas Hold 'Em at a table where players routinely wager as much as $10K per session.

"Alex is a good player," a witness told X17online. "He likes to play in the high stakes games when he's in town."

Alex appeared to be having a good time, he was talking with fellow players and signed autographs for fans.

A-Rod's poker playing has caused some problems in the past. In 2005, Rodriguez was cautioned by the Yankees after he was spotted in an illegal poker club in NYC with poker pro Phil Hellmuth.