The Detroit Tigers have made several huge moves this offseason, but the collective upgrades to their bullpen could prove to have the biggest impact of any of their acquisitions. On Monday afternoon, the Tigers raised some eyebrows across baseball when they brought back left-handed reliever Andrew Chafin.

4:00pm: The Tigers announced that they have signed left-hander Andrew Chafin to a minor league deal with a non-roster invite to spring training. The southpaw is a client of Meister Sports Management.