The Philadelphia Phillies' rotation may be the fearsome foursome, but they are looking into adding some insurance. The Phillies have had discussions about adding John Maine to their depth of starters, Maine's agent, Rex Gary, confirmed to ESPNNewYork.com.

Gary said the Phillies aren't the only team with whom he is talking about Maine.

"We have spoken to a lot of teams and there is a lot of interest," Gary said.

The Phillies have five starters with Cliff Lee, Roy Halladay, Roy Oswalt, Cole Hamels and Joe Blanton. However, Blanton could be dealt to free up money and, like all rotations, there will be injury concerns.

Maine knows plenty about injuries. After making $3.3 million in 2010, he was non-tendered by the Mets prior to the deadline for arbitration largely because of his inability to stay healthy. His shoulder problems limited him to 39 2/3 innings last season. He underwent season-ending surgery in July to repair a capsule tear in his right shoulder. Gary said Maine has recovered very well.

It would seem likely that Maine would have to accept a minor league deal, but Gary would not get into the particulars. Maine turns 30 in May.