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06/03/09 8:45 PM ET

Hanson to make Braves debut Saturday

Top prospect will start in place of Medlen against Brewers

ATLANTA -- It has been common knowledge throughout the Braves organization that Tommy Hanson's much-publicized ascent to the big leagues would culminate in Atlanta sometime this season. It was only a matter of when he would get the call.

That question has been answered, as the 6-foot-6 right-hander will make his Major League debut for the Braves on Saturday against the Brewers. Scheduled starter Kris Medlen, Hanson's good friend and roommate, will be moved to the Atlanta bullpen.

"We felt like Tommy Hanson has continued to dominate," said Braves general manager Frank Wren. "There was never really a bad report. Our fans want to see wins, and they want the team to be in a playoff hunt, and we felt like we had the best chance to do that with a guy like Tommy Hanson."

It was a busy Wednesday for Wren and the Braves. Atlanta released iconic southpaw Tom Glavine and acquired All-Star center fielder Nate McLouth from Pittsburgh for three prospects: outfielder Gorkys Hernandez and pitchers Charlie Morton and Jeff Locke.

Hanson's performance at Triple-A Gwinnett this season has been nothing short of dominant. He has struck out 90 batters in just 66 1/3 innings while posting a 1.49 ERA.

Hanson was ranked No. 24 in MLB.com's 2009 preseason Top 50 Prospects list.

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