CBS Sports' Jon Heyman writes that the Athletics could listen to trade offers for left-hander Brett Anderson. Susan Slusser of the San Francisco Chronicle wrote the same thing last month. Whether the Athletics actually go through with it could depend on whether the club is able to re-sign free agent right-hander Bartolo Colon. Injuries have limited Anderson to just 163 innings since the start of the 2011 season, but he doesn't turn 26 until February. The Athletics have already exercised his $8 million option for 2014, but his contract still includes a $12 million club option for 2015.