Robert Guerrero threw out the first pitch on Sunday at the Oakland Athletics vs New York Yankees game in Oakland, trying to help promote his July 28 fight in San Jose with Selcuk Aydin, which will air live on Showtime.

Guerrero (29-1-1, 18 KO) and Aydin (23-0, 17 KO) will be vying for the interim WBC welterweight title, which for once at least kind of makes sense with Floyd Mayweather incarcerated and all. We'll have much more on that fight in the coming week, as well as the co-feature bout between Shawn Porter (19-0, 14 KO) and Alfonso Gomez (23-5-2, 12 KO).

As for the ballgame, the A's completed a four-game sweep of the Yankees with a 5-4 win, coming on a walk-off single in the bottom of the 12th by Coco Crisp (pictured with Guerrero after the jump), finishing the comeback after Oakland had trailed 4-0 heading into the fifth inning. The attendance for the game was announced at 30,470, and while I don't know how much it helped get anyone into the HP Pavilion this Saturday, it certainly couldn't have hurt.

Photos after the jump.

Guerrero with outfielder Josh Reddick.

Guerrero with Sunday's hero, Coco Crisp.

All photos by Tom Hogan - Hoganphotos/Golden Boy Promotions