"Sorry guys, I just had an accident," Williams said live on the air. "I got a police officer behind me. This guy's going to try to escape."
Williams wasn't hurt in the incident, but his Chevy Tahoe took some damage to its rear.
"I'm good, I'm fine," he said after arriving at the park. "No worries. Car's not real good, but I'm good."
Fortunately for Williams, the collision didn't occur at high speed.
"It's bizarre anyways, I was just sitting there waiting for the light to go green," he said. "It wasn't fast, all the traffic was stopped. All I feel is this car just kind of nudge between myself and another car. It just nudged through. It wasn't a full, high speed, it was just he nudged through. It was odd."
After the driver fled and the police -- including a helicopter -- gave chase, Williams continued the interview for several more minutes, describing the suspect's car as best he could. Later, he told reporters that the authorities had gotten their man.
"I guess they apprehended him," Williams said. "Reports are that they found him and took him into custody."
Andrew Simon is a reporter for MLB.com. Follow him on Twitter @AndrewSimonMLB. This story was not subject to the approval of Major League Baseball or its clubs.