(OAKLAND) – Sean Manaea realizes he will need time to regain arm strength. Until he does, he is comfortable relying on a deceptive delivery and sneaky fastball. Manaea matched his career high by striking out 10 in his second start following shoulder surgery, and the Oakland Athletics beat Detroit 3-1 on Sunday to give the Tigers their first 100-loss season since 2003. Manaea (1-0) allowed two hits over seven innings against the Tigers, who didn't get a hit until Christian Stewart homered leading off the fifth. The 27 year old left-hander struck out seven of his first 11 batters, including Dawel Lugo to end the first after back-to-back walks by Jeimer Candelario and Ronny Rodriguez. Khris Davis had a two-run double for Oakland, which remained one game behind Tampa Bay for the top AL wild card and 1 1/2 games ahead of Cleveland for the second wild card. At 42-100, Detroit is headed to its poorest record since going 43-119 in 2003, the team record for losses. Baltimore, Miami, Kansas City and Toronto also are on pace to lose 100 games; the big league record of four clubs was set in 2002. Detroit starter Daniel Norris (3-12) was removed after three innings for his sixth straight start, part of the Tigers' plan to limit his workload.