Three starts represent a fairly small sample size, so it's hard to jump to any grand conclusions other than that Jarrod Parker has struggled in his first three starts this season. Detroit hammered the A's right-hander for eight runs (all earned) on nine hits in 3 1/3 innings as the Tigers cruised to a 10-1 decision in the deciding game of a three-game series at the Coliseum on Sunday. "I made a couple of good pitches and they hit them," Parker said, "and then I made a couple of bad pitches and they hit them." Said manager Bob Melvin: "He was at times last year one of the better pitchers in the American League, so it is puzzling." As a rookie in 2012, Parker was 13-8 with a 3.47 ERA. He's 0-2 with a 10.80 ERA in 2013. "After what we saw last year and what we've seen at times this year," Melvin said, "it's puzzling when he gets hit because his stuff is so good. He's just given up a lot of hits for the innings he's pitched." For the record, that's 23 hits (and eight walks) in 11 2/3 innings. Sunday's start was his second in a row in which he lasted only 3 1/3 innings. In his previous outing, at Anaheim on Tuesday night, he walked three men. He said after that game that he was having problems commanding his fastball. "He wanted to attack the strike zone today," Melvin said. "He did, and maybe caught a little bit more of the plate than he wants to against a good fastball-hitting team." Two batters into the game, the Tigers were ahead to stay. Torii Hunter followed Austin Jackson's leadoff single with an RBI double to the center-field wall.