Charles Barkley says he's not worried about serving a brief jail sentence after pleading guilty Monday to charges of driving drunk.

The 45-year-old former NBA star pleaded guilty to two misdemeanor charges stemming from his arrest in late December in Arizona. He's set to begin a five-day sentence March 21.

"I always knew I'd have to do time," he told The Associated Press on Wednesday. "It's not something I'm worried about."

The Hall of Famer must pay more than $2,000 in fines and attend an alcohol treatment program. Under Arizona law, he'll also be forced to install an ignition interlock device on his vehicles.

"I'm not even thinking about it," he said of the jail sentence. "When it happens, it happens."

Barkley was stopped by police Dec. 31 shortly after leaving a Scottsdale nightclub. He was arrested after failing a field sobriety test. He had a blood-alcohol level of .149 percent, nearly twice the legal limit of .08 percent in Arizona.

After a six-week leave of absence, Barkley resumed his studio analyst role for TNT last week.

The latest development in Barkley's legal woes came as he is promoting a new television series on Golf Channel called "The Haney Project," in which renowned coach Hank Haney tries to help him improve his swing.

"I made a mistake and just have to take the beatdown," Barkley said. "It is what it is. It's 100 percent my fault."