Jan 20, 2009 7:50 PM EST

The Diamondbacks have fired the man who played their team mascot, D. Baxter the Bobcat, after he was arrested on suspicion of extreme DUI.

David Hamilton, 35, was fired by the Diamondbacks three weeks ago. The club said it only recently learned of Hamilton's arrest, which took place in September.

"After concluding our own investigation and gathering the facts involved, we felt it was necessary to take corrective action," Diamondbacks President and CEO Derrick Hall said. "We will pursue a replacement for the mascot that is such a large part of our fan experience immediately."

Via Arizona Republic