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.

Welcome to Sluggball, a new twist on baseball founded by a group that includes former Phillies GM Ruben Amaro Jr. and boasts retired MLB player Kenny Lofton among its advisers.

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 ...

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 ...

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