Texas Rangers designated hitter Prince Fielder is expected to announce on Wednesday that his playing career is over due to medical concerns, according to a report from Fox Sports.Fielder, 32, recently underwent his second neck surgery in a span of 26-plus months. He was suffering from a herniated disk and underwent a cervical fusion.Fielder was struggling prior to the season-ending injury, batting .212 with eight homers and 44 RBIs.The Fox Sports report said that Fielder won't formally retire. Sources told the entity that Fielder is now considered medically disabled and doctors won't clear him to play.Fielder has four seasons remaining on a nine-year, $214-million deal that he originally signed with the Detroit Tigers. He is due to be paid $24 million each season through 2020.A formal retirement would mean Fielder would have to forfeit the remainder of the money owed. The Rangers have insurance on the contract and could owe less with the insurance company paying the rest.Fielder underwent the first major neck surgery in May 2014, when he played in just 42 games during his first season with the Rangers. He was acquired during the previous offseason from the Tigers in exchange for second baseman Ian Kinsler.Fielder has 319 career homers, the same total that his father, Cecil, slugged during his 13-year career. He has a .283 career average to go along with 1,028 RBIs.Fielder was a six-time All-Star. He represented the National League three times while with the Milwaukee Brewers. He also played three times for the American League -- twice with the Tigers and last season for Texas.He looked to have rebounded well from the 2014 surgery when he batted .305 with 23 homers and 98 RBIs last season. But issues with sleep apnea and his neck sabotaged his 2016 campaign.Fielder bashed a career-best 50 homers for the Brewers in 2007. In 2009, he hit 46 homers and drove in a career-best 141 runs.He departed the Brewers in free agency following the 2011 season and signed the huge contract with the Tigers.