DENVER -- After dominating Double-A competition during four rehab starts, right-hander Alex White will make his Rockies debut on Tuesday against the Astros.
Rockies manager Jim Tracy announced on Saturday that White will take the rotation spot of Jason Hammel, who will move to the bullpen on the heels of a 1-2 record with a 9.33 ERA in four August starts.
White's start will give fans their first chance to see one of the four players involved in the deal that sent former Rockies ace Ubaldo Jimenez to Cleveland just before the non-waiver Trade Deadline.
"We want to see him," Tracy said of White.
Tracy said he hasn't set a pitch count for White's start on Tuesday, but added that he'd be monitoring the hard-throwing righty closely to see how he handles "the different dynamics" of pitching at high altitude. The Rockies' skipper said he's told White not to feel like he has to make huge statement in his first Rockies start.
"There's going to be a patience level involved with this young man, and I wanted him to hear that from me," Tracy said.
White has had his patience tested this season, as he's missed much of the campaign with a torn pulley tendon in his right middle finger. But he showed little rust during his rehab assignment with Double-A Tulsa, going 1-1 with a 1.65 ERA over four starts (16 1/3 innings). The right-hander made his Major League debut with Cleveland this season, where he was 1-0 with a 3.60 ERA over three starts.
"I'm very excited," White said. "It's a long time coming. I feel like I've been on the DL now for three months, and it's just a good feeling to be back healthy and be helping this team."
White was dominating in his most recent rehab start on Thursday, when he threw 7 1/3 scoreless innings of three-hit ball. As that evidence suggests, White's health concerns are in the rearview mirror.
"I feel great," White said. "The biggest concern with the rehab was getting the arm back in shape, and we've done that. My arm feels very good. Getting back to 100 percent, we're right at that."
Right-hander Aaron Cook will have his next start moved to Wednesday.