CLEVELAND (AP) — Cavaliers star guard Donovan Mitchell will miss Game 4 Monday against the Boston Celtics with a left calf injury, a loss that will make it even tougher for Cleveland to get back in the series.

What You Need To Know

  • Cavaliers star guard Donovan Mitchell will miss Game 4 Monday against the Boston Celtics with a left calf injury

  • Mitchell, who has been dealing with a left knee injury for months, got hurt in the closing minutes of Cleveland's Game 3 loss Saturday

  • Mitchell did not take part in the team's morning shootaround, opting for treatment and film work

  • The Cavs are also without starting center Jarrett Allen

Mitchell, who has been dealing with a left knee injury for months, got hurt in the closing minutes of Cleveland's Game 3 loss Saturday.

The five-time All-Star is averaging 29.6 points in his second postseason with Cleveland. He scored 33 Saturday in the Cavs' 106-93 loss as the Celtics took a 2-1 lead in the Eastern Conference semifinal.

Mitchell received treatment on the bench during a timeout but was slowed during game action. With the Celtics up by 13 and closing out the win, Mitchell left the court in the final two minutes and went to the locker room.

Mitchell did not take part in the team's morning shootaround, opting for treatment and film work.

He arrived at Rocket Mortgage FieldHouse shortly before 5 p.m., two hours before the opening tip.

Earlier, Cavs guard Darius Garland said it will be imperative for the team remain in attack mode if Mitchell is out.

“Just be aggressive,” Garland said. “Play as a team, keep the ball moving and trust each other. We have a lot of guys that are super confident in themselves, so we'll need them to be super confident tonight and make the extra pass and play as a team and pull us together.”

The 27-year-old Mitchell is averaging 31.7 points and making 53.3% of his 3-pointers against the Celtics. He's averaged 36.8 points in his last five games, scoring 50 in a Game 6 loss to Orlando in the first round.

Mitchell played in just 55 games this season after being slowed by the left knee injury. He sat out 16 of Cleveland's final 24 games in the regular season.

The Cavs are also without starting center Jarrett Allen, who missed his seventh straight game with a rib injury. Allen hasn't been able to play since getting hurt in Cleveland's first-round series against the Magic.

Allen shot a few free throws at the end of the team's pregame shootaroun, but isn't ready to play in a game.

Top-seeded Boston remains without center Kristaps Porzingis, who has missed the last four games with a calf injury.