Catching a knuckleball never has been easy. Ask any catcher who's tried to catch one. For that matter, ask an outfielder who's tried to catch one, because it was a knuckling liner to center in the sixth Austin Jackson tried to catch on Thursday … But couldn't. Instead, it darted over his head, ending up as a two-run triple for the A's in their 12-4 triumph over the Tigers. "That was a weird one," manager Jim Leyland said. "It was going one way, then shot the other way. Nobody catches that ball."