Jarrod Parker pitched well enough to keep Oakland in the game against Detroit.
Trying to field his position proved costly to the Athletics.
Parker's error allowed the Tigers to score a go-ahead run in the third inning of a 3-1 win over the A's Saturday night in Game 1 of their AL division series.
The right-handed rookie scooped Quintin Berry's dribbler down the first base line with his glove. It looked as if he then attempted to flip it to first baseman Brandon Moss - a converted outfielder - and found out too late his teammate wasn't on the bag.
Berry was safe at first and Omar Infante scored to give Detroit a 2-1 lead in the closely contested opener of the five-game series.
Parker appeared dumbfounded that Moss didn't aggressively charge the grounder or cover first to await a throw.
Game 2 is Saturday, about 15 hours after the final out of Game 1, at Comerica Park before the series shifts to Oakland.
Parker gave up three runs - two earned - and seven hits over 6 1-3 innings...