Jan. 22 (UPI) -- A former Philadelphia Phillies general manager and Cleveland Indians legend Kenny Loften are among a group of people who will launch Sluggball, a baseball version of Topgolf, in May, they announced Wednesday. "Sluggball gives players a unique opportunity to return to the field and embrace the best parts of the game," Loften, a Sluggball adviser, said in a news release. Advertisement "With its focus on hitting in a fun, competitive atmosphere, Sluggball is unlike anything else