A.J. Burnett, who considered retiring after last season, is again thinking about the possibility of calling it quits after this year.

Asked whether he would return to the Philadelphia Phillies in 2015, Burnett said, "Probably not. We'll see."

The veteran right-hander signed a one-year deal with a player option for 2015 before this season. He can max out his current deal at $12.5 million with five more starts.