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.

LAKELAND, Fla. -- The Detroit Tigers are bringing back left-handed reliever Andrew Chafin for a third stint in the organization. Chafin, 34, agreed to a minor-league contract and will be invited to big-league camp.