Oakland A's call up Lou Trivino, place Yusmeiro Petit on
Lou Trivino impressing in Athletics bullpen
Lou Trivino impressing in Athletics bullpen
A's desperately need to add bullpen arm to compete in the playoffs
Yankees are perfect team to unlock Lou Trivino's considerable
Oakland A's Lou Trivino named AL Reliever of the Month for June
Two fresh arms have bolstered the Oakland A's bullpen - Beyond the
Oakland A's prospect watch: Lou Trivino impressive in MLB debut
A's reliever Lou Trivino seeing early results from mechanical tweak
Quick Look: What's up with Oakland A's reliever Lou Trivino
A's bullpen is better than expected, except for one key piece
Yankees reliever Trivino warms up in wrong jersey, changes