Sluggball, a 4-on-4 baseball competition co-founded by former Phillies GM Ruben Amaro Jr., is expected to debut in May and tour minor league stadiums this season.

Former Phillies General Manager Ruben Amaro Jr. Will Launch a Hitting Competition PHILADELPHIA (AP) — Sluggball, a 4-on-4 baseball competition co-founded by former Philadelphia Phillies general ...

a 4-on-4 baseball competition co-founded by former Philadelphia Phillies general manager Ruben Amaro Jr., is expected to debut in May and tour minor league stadiums this season. Sluggball focuses ...

Sluggball, a 4-on-4 baseball competition co-founded by former Philadelphia Phillies general manager Ruben Amaro Jr., is expected to debut in May and tour minor league stadiums this season ...

Check out Animal World & Snake Farm Zoo's Valentine's deals. FILE - Philadelphia Phillies general manager Ruben Amaro Jr., speaks during a baseball news conference Thursday, Dec. 20, 2012 ...