ST. PETERSBURG, Fla. -- The Florida Marlins lost both their manager and another game.
James Shields threw a four-hitter with 10 strikeouts in his second consecutive complete game, Casey Kotchman had a tiebreaking single in the eighth inning and the Tampa Bay Rays handed the reeling Marlins their 10th loss in a row, 2-1 on Sunday.
Florida manager Edwin Rodriguez unexpectedly resigned before the game, and the last-place Marlins dropped to 1-18 in June. Bench coach Brandon Hyde managed Sunday, but the club will begin a search for an interim manager.
Rodriguez, the first Puerto Rican-born manager in major league history, said in a statement released by the team it was a difficult decision to leave, given the "positive way the organization is moving, a new ballpark next season and the young core of players."
Rodriguez was at the ballpark and talked with individual players in the manager's office before the game. He did not hold a session with reporters.
Potential candidates to become Florida's next manager include special assistant to the owner Jack McKeon, who led the Marlins to a World Series championship in 2003.
"It's been extremely frustrating for everyone," president of baseball operations Larry Beinfest said. "I think everyone here knows what is going on -- the way we've played, the way we've performed. It's tough on everyone, especially [Rodriguez]."
Shields (7-4) has a major league-best five complete games this season, and was coming off a 4-0 shutout over AL East-leading Boston on Tuesday.
Shields retired 13 in a row before Omar Infante hit a one-out double in the fifth.