Keller gave up two runs on three hits in one inning Tuesday. He didn't strike out anyone nor did he issue a walk.
He nearly escaped his first start in a big-league camp without allowing a run, but outfielder J.B. Shuck misplayed a catchable flyball with two outs. Keller is expected to pitch at Triple-A, where he ended his 2018 campaign. The 22-year-old compiled a 2.08 ERA in his final five starts (28.1 innings) after struggling initially. Provided Pittsburgh's top prospect continues to pitch well, there's a good chance he receives a promotion to the major leagues by September, if not sooner.