11:53pm: Knobler indicates that Oswalt has turned the Tigers down even though they were very interested in signing him (Twitter links). They even had Justin Verlander make a recruiting call. He says the Tigers are likely to leave the fifth starter's job up for grabs in Spring Training.
9:01am: The Tigers have some interest in Hideki Matsui and Raul Ibanez, Danny Knobler of CBSSports.com reports on Twitter. Victor Martinez will likely miss the entire season with a torn ACL, so Tigers GM Dave Dombrowski is in the market for a designated hitter.
The Tigers are considering free agents Johnny Damon and Juan Pierre, but might rely on internal options at DH. Matsui, Ibanez, Pierre and Damon all bat from the left side, but club could consider right-handed bats such as Vladimir Guerrero, Magglio Ordonez and Derrek Lee. Both Matsui and Ibanez have been linked to the Yankees, another club that may add a designated hitter.
The Tigers have also shown interest in Roy Oswalt, according to Knobler. While Jacob Turner and others are candidates to start for Detroit, the team is considering ways of adding starting pitching depth before Opening Day. Knobler says it appears unlikely that the Tigers will sign Oswalt, which matches up with what Jon Paul Morosi of FOX Sports reported yesterday.