Justin Bour's mental game is in a slump.The Angels first baseman committed his Lenny Dykstra Jersey second blunder in a week Friday night when he failed to run out an infield popup against the Mariners. The lapse in a tie game turned into an inning-endingdouble play.LA wound up losing 5-3.MORE:Bour accepted the blame afterward, Jason Vargas Jersey telling reporters () his mistake was "embarra sing" and that there was "no excuse for it." He vowed not to let it happen again.Angels manager Brad Ausmus was similarly Pedro Martinez Jersey direct. "That's the kind of thing you learn in little league," he said, ."It'll never happen again," Ausmus added, per Fletcher.Bour had one boneheaded move on his ledger before Friday. He strayed off second Tim Tebow Jersey base at Wrigley Field after sliding "safely" into the bag. Hethought knew he had been tagged out by the Cubs' Javier Baez. Umpire Marty Foster blew the call, and Bour likely would have been called out on review had the Cubs challenged the call.Friday's adventure will not help Bour keep his jobwith the Halos. Robinson Cano Jersey He was signed as a free agent in the offseason to provide depth at first base and designated hitter, but he's batting just .208 with a .654 OPS and Shohei Ohtani ( Jeff McNei Jersey elbow) is working his way back to the active roster.