The Pittsburgh Pirates will call up right-handed pitcher Bubba Chandler and add him to the big-league staff on Friday, MLB.com reports.

Even before he emerged from the bullpen Friday, the Pittsburgh Pirates’ Bubba Chandler was considered the top pitching prospect in baseball. The hard-throwing 22-year-old confirmed those credentials in his major league debut.

Bubba Chandler has made an impressive major league debut for the Pittsburgh Pirates. The 22-year-old right-hander, considered the top pitching prospect in baseball, threw four scoreless innings in relief and earned the save in a 9-0 win over Colorado on Friday night.