Miami Heat forward Chris Bosh has a strained abdominal muscle and will be out indefinitely, the team announced Monday after an MRI exam confirmed the injury.

The 28-year-old Bosh suffered the injury in the first half of a 95-86 win over the Pacers on Sunday in the first game of the Eastern Conference semifinals. He had 13 points on 6-of-11 shooting from the floor and five rebounds in just 13 minutes when he left the game. Bosh averaged 15 points and 7.2 rebounds in the Heat’s five-game win over the New York Knicks in the first round of the playoffs after averaging 18 points and 7.9 rebounds during the regular season.

The second game of the series is scheduled for Tuesday night in Miami. Game time is 7:00 p.m. ET at AmericanAirlines Arena.