Davis hit a pair of homers — including a towering, two-run shot that bounced off the facade below the luxury suites in center field — but the Athletics still lost 4-3 to the Seattle Mariners on Monday night. Three of his strikeouts came in the third when Graveman got all three Mariners hitters to strike out swinging. The second time through the lineup they really started swinging early, so we had to mix up some speeds and continue to try and keep them off balance early in the count. Nathan Karns (3-1) gave up three runs over six-plus innings. The right-hander lost to Oakland in his first start of the season on April 9 but struck out six and walked one this time to earn his third straight win. The two-time NL Cy Young Award winner is a free agent who hasn't pitched in the majors since June 27 but is hoping to return to the big leagues. Mariners: RHP Joaquin Benoit (shoulder inflammation) could begin throwing by the end of the week. Lowrie was kept out of the starting lineup due to lingering soreness in his calf.