Phillies ace Roy Halladay out six to eight weeks Philadelphia Phillies ace Roy Halladay is expected to miss six to eight weeks because of a strained right shoulder, the latest major setback for the five-time NL East champions. Halladay was put on the 15-day disabled list Tuesday, two days after he was hit hard and pulled from a start in St. Louis after just two innings because of shoulder soreness. The two-time Cy Young winner will be shut down for a minimum of three weeks, then work toward rejoining the rotation, Phillies assistant general manager Scott Proefrock said. Proefrock said tests done in Philadelphia indicated Halladay doesn't need surgery to recover and that the injury doesn't affect his rotator cuff. "We hate to have him down, but it's nothing that requires anything other than rest," Proefrock said. Halladay is 4-5 with a 3.98 earned-run average in 11 starts. Rangers sign Oswalt Free agent right-hander Roy Oswalt has signed with the Texas Rangers, multiple sources reported, but he won't join the team for several weeks. Oswalt, 34, has a 159-93 record in 11 seasons with Houston and the Phillies. Oswalt is expected to need at least three or four starts in the minors. The Rangers signed him to a one-year contract worth $5 million with another $1 million in incentives, according to industry sources. The Tampa Bay Rays purchased the contract of designated hitter Hideki Matsui from triple-A Durham. Matsui was immediately inserted into Manager Joe Maddon's lineup, batting sixth and starting in left field. Matsui, who turns 38 on June 12, played 13 games with Durham after signing a minor league contract with Tampa Bay on April 30. He has played nine seasons in the major leagues with the New York Yankees (2003-09), the Angels (2010) and Oakland Athletics (2011) following a 10-year career with the Yomiuri Giants of Japan's Central League. Detroit outfielder Magglio Ordonez, 38, plans to announce his retirement Sunday before the Tigers play the Yankees. The six-time All-Star struggled through 92 games last season with a surgically repaired right ankle, hitting a career-low .255 with five homers and 32 RBIs. Washington Nationals infielder Chad Tracy will require surgery for a torn groin muscle and is expected to be sidelined at least six weeks.