ANAHEIM -- Angels broadcaster and former Major League pitcher Mark Langston underwent successful surgery to have a defibrillator inserted into his heart on Tuesday in Houston, the Angels announced.

Langston, who suffered what the team called a “medical emergency” in the first inning of Friday's 6-4 loss to the Astros, is expected to remain in the hospital until Wednesday before returning home later this week.

On Friday, Langston had just finished his pregame segment and turned the broadcast over to his partner, Terry Smith, for the first pitch. He collapsed moments later, and medics were summoned into the booth. Houston PD commanders Paul Follis and Daryn Edwards were the first responders who assisted Langston after he stopped breathing.

Langston was transported to a local hospital. The Angels said Langston, 59, was alert as a team of doctors set about determining the cause of the episode.

Langston has been an analyst on Angels radio broadcasts for the last seven seasons and attended manager Brad Ausmus' pregame media briefing Friday.

A four-time American League All-Star, Langston won 179 games in 16 seasons. He pitched for five teams, spending eight seasons with the Angels and six with the Mariners.

Langston and Mike Witt combined to pitch the eighth no-hitter in Angels history on April 11, 1990. He became head baseball coach at Orange Lutheran High School (Calif.) after his retirement in 1999 and guided the Lancers to a playoff berth in 2002. He was inducted into the San Jose Sports Hall of Fame in 2018.