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06/26/12 7:29 PM ET

Gibson confirms that Bauer will debut Thursday

ATLANTA -- Manager Kirk Gibson confirmed Tuesday that the D-backs will summon top prospect Trevor Bauer from Triple-A Reno to start Thursday's series finale against the Braves. It will be the 21-year old right-hander's Major League debut.

"He's excited, we're excited to have him, let's be honest," Gibson said. "It's a great challenge for Trevor, and he's up to it."

Bauer was the third overall pick in the 2011 First-Year Player Draft and will become the first member of his draft class to play in the Major Leagues.

Bauer has sped through the Minor Leagues since beginning his professional career last July. This year, he has struck out 116 batters in 93 innings, and has an ERA of 2.23 in 16 starts between Double-A Mobile and Reno.

"I think we feel that Trevor has progressed, and it's getting time for him to find out how he does against a little better competition," Gibson said. "It has to start sometime, and we've decided this is it."

Bauer has not yet arrived in Atlanta. Gibson said he is expected to join the team Wednesday.

When Bauer does arrive at Turner Field, he will be the subject of much fascination. His eye-popping numbers in the Minor Leagues, high-profile prospect status and unique pregame routine have created plenty of interest as he has moved through the Minor Leagues. With his debut now only days away, Gibson said managing Thursday's hype will be critical.

"My worry is that people put too much expectation on the young kid right now," Gibson said. "It's all a process, you know. This game is a little different, the hitters are a little better, the game's going to be a little faster. All the things that we've worked on starting in Spring Training, he's going to be tested to see how good he is at dealing with them."

Drew set to be activated, start on Wednesday

ATLANTA -- Once shortstop Stephen Drew is activated from the 15-day disabled list on Wednesday, D-backs manager Kirk Gibson said he be in the starting lineup against the Braves. It will be the first game Drew has played since gruesomely breaking his right ankle while sliding into home plate on July 20, 2011.

On the eve of his return to the Major Leagues, Drew said he expects Wednesday to be a bit like making his debut again.

"You don't play for 11 months up here, it's definitely going to be getting the jitters out of the way again, like getting called up again," Drew said. "It's going to be a good time, and looking forward to getting back into the swing of things."

Drew has played in 11 Minor League games as he rehabilitated his injury. He has played three games in a row twice, and played back-to-back games at Double-A Mobile on Sunday and Monday. He said he thinks he has accomplished everything he needed to during rehab.

"There's been some good games, and some not so good," Drew said. "It's not like I can't do what I need to do. Over the course of the season I think it's just going to get better."

With Drew out, Arizona has used Willie Bloomquist and John McDonald at shortstop. Bloomquist has gotten the majority of the playing time, and is hitting .299 with a .330 on-base percentage this season. Both will move into more utility roles, which will include time at shortstop as Drew continues to adjust to playing every day again.

"I just think we can't expect him to go out there and be an everyday player," Gibson said. "At the same time, it'll be important for him after he plays [a few games in a row], he'll be a bat off the bench because we need that."

Young sits for second straight game on Tuesday

ATLANTA -- Center fielder Chris Young was out of the D-backs starting for the second game in a row on Tuesday. Manager Kirk Gibson said he wanted to give Young a break to work through his slump.

"He's been grinding pretty hard, he's been searching for it," Gibson said. "I'm just kind of taking the initiative to slow him down a little bit."

Young is hitting .220 this season, and is 4-for-44 since June 10, which was his last multi-hit game.

Gibson said Young is available to pinch-hit, but he wants him to get away from leaving the ballpark with a negative feeling for a couple days.

"Every day he comes in, he works hard on the tee, he goes out and takes [batting practice], then he gets in the game and he hasn't had the success he wants," Gibson said. "He gets very disappointed. He really wears it hard. So then it kind of interrupts the progress he made before game time."

Teddy Cahill is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.