ESPN has laid off longtime broadcaster Karl Ravech on Tuesday as part of its first round of layoffs following the completion of its NFL Network acquisition, according to sources briefed on the moves. Ravech had been one of the network's most prominent on-air voices for more than three decades.

ESPN chairman Jimmy Pitaro addressed the broader layoffs in an internal memo Tuesday.

"We have made significant progress integrating the NFL assets that we acquired into ESPN," said Pitaro. "While most of the job impacts are tied to the acquisition, we will also notify colleagues in other parts of the company today that their positions have been impacted."

Ravech, 61, joined ESPN in 1993 and served as the network's lead play-by-play voice for Major League Baseball coverage, hosted "Baseball Tonight," called college basketball and worked for years as a "SportsCenter" anchor. He called Monday's Phillies-Dodgers game in Philadelphia, just before news of his dismissal emerged.

When reached by phone Tuesday morning, before Pitaro's memo was sent, Ravech said he had not yet been informed of the decision.

Ravech's departure came alongside similar moves affecting other longtime ESPN personalities, including "SportsCenter" anchor David Lloyd and injury analyst Stephania Bell. NFL analyst Ryan Clark was also let go Monday as part of the same round of cuts. ESPN declined further comment on the layoffs.