Guardado said he will have a cortisone shot on Wednesday and also said he doesn't expect to be out much longer than the 15 days.
Guardado allowed three home runs in his past six games, including a game-tying, two-run home run against the Red Sox on Friday and a game-winning shot on August 8 against the Angels.Over his past six games, he has a 9.82 ERA (six runs -- four earned -- over 3 2/3 innings pitched). Guardado joined the club after coming into Spring Training as a non-roster invitee and has played the entire season, allowing a run in 10 of his 42 appearances. Eyre started the season on the disabled list with a strained right groin. He last pitched in the Major Leagues on July 26 against the Royals, when he allowed one run over one inning of work. Eyre produced 2 1/3 scoreless innings and made 30 pitches at Triple-A on Monday. While with the RedHawks, he was 0-0 with one save and a 2.45 ERA.
Daniel Paulling is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.