in 2004, it dropped all the way to 5.98. His fastball, once clocked consistently at 96 -100 MPH, was down to about 92 - 93 MPH in 2004, due to a degenerative hip condition that first appeared in 2003, which forced him to alter his pitching delivery. Percival's contract with the Angels expired in 2004 and he became a free agent at the end of that season. Rather than bring Percival back, the Angels decided to turn to young phenom Francisco Rodríguez to close, motivated largely by Rodriguez's much lower price tag and concerns about Percival's age and health. The Angels offered to negotiate a reduced role (at a correspondingly reduced salary) for Percival to return as a setup man, but Percival decided to seek opportunities elsewhere that would allow him to remain a closer. Later career and retirement Percival signed with the Detroit Tigers as a free agent for the season. However, after a mediocre start to his career at Comerica Park, during which he converted 8 saves from 11 opportunities and posted an ERA of 5.76, Percival suffered a serious injury to his right forearm in early July. The severity of the injury ended his season, as well put the rest of his career in doubt. After attempting to recuperate, Percival reported to spring training for the Tigers in . However, on his first outing he again suffered significant pain and left the team. After spending the entire 2006 season on the Tigers' disabled list and working for the team as an advance scout, Percival's contract with the Tigers expired at the end of the 2006 season. Though he didn't pitch a game during the Tigers' run to the American League Championship, the team voted Percival a ring and a full playoff share. Appreciative of this gesture, he used the money to buy a suite at Comerica Park for his teammates' wives. In November and December 2006, during his time off from baseball, Percival funded and himself built a new clubhouse at the Riverside Sports Complex, the home venue of his college baseball program, UC Riverside. Comeback and second retirement On January 19, , the Los Angeles Angels of Anaheim hired Percival as a special assignment pitching instructor. However, believing his arm to have finally healed, he requested his release from his minor league coaching contract to pursue a comeback. Percival signed a contract with the St. Louis