Marlins general manager Dan Jennings told SiriusXM's Jim Bowden in an interview Sunday that Giancarlo Stanton is "not available" for trade this offseason. "He will be in right field at Marlins Park on Opening Day," Jennings added. "We are building around him." Stanton's name has been involved in plenty of trade rumors over the last year, but the Marlins dealing him has always seemed unlikely. The young slugger will turn just 24 later this week and will be arbitration-eligible for the first time this winter.