Bradley (shoulder) questionable for Game 4

Avery Bradley Boston Celtics.jpg

Bradley (shoulder) questionable for Game 4

WALTHAM The Boston Celtics once again approach a playoff game uncertain if one of their top guards will play.

Only now, it's not Ray Allen.

Instead, it's the man who replaced him in the starting lineup, Avery Bradley. C's officials list Bradley (left shoulder) as questionable for tonight's Game 4 matchup.

Bradley, who has been bothered by shoulder problems throughout this season, re-aggravated the injury in the third quarter of Boston's 90-84 overtime win against Atlanta in Game 3.

"It's really sore," Bradley told CSNNE.com after the Game 3 win. "Every time I go to extend my arm and it gets hit, it comes in and out."

While he did participate in the team's morning shoot-around, the C's continue to list him as a game-time decision.

As for Allen, who returned to the C's lineup after missing nearly a month because of a right ankle injury, he is expected to play tonight.

Like Bradley, Allen was also able to participate in the team's morning shoot-around which consisted primarily of half court drills with little to no contact.

However, the Celtics understand that Allen's availability could change between now and tip-off, which was the case on a couple occasions earlier this season when he was close to returning to the court.

The 6-foot-5 guard played 37 minutes in Boston's Game 3 win, significantly more than anyone -- Allen included -- anticipated.

Celtics coach Doc Rivers makes no apologies for extending Allen's minutes, which was due in part because of Bradley's shoulder injury.

Said Rivers: "Someone asked me (before Game 3), 'Would there be a minute restriction (on Allen)? I said, 'No, because we don't know when he'll play again or not.' So I'm getting everything I can get out of him each game. I'm saying that jokingly, but somewhat true as well."

If Bradley can not play, the Celtics will look to fill his void from a pool of players that consists of Sasha Pavlovic, Marquis Daniels, Allen and Mickael Pietrus. Boston also may consider going with Keyon Dooling.

BOSTON SPORTS TONIGHT PODCAST: Celtics draft night recap

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BOSTON SPORTS TONIGHT PODCAST: Celtics draft night recap

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0:41 - Danny Ainge on why he saw Jayson Tatum as the best player in the draft, Kristaps Porzingis rumors, and why Josh Jackson canceled his Celtics draft workout.

4:49 - Rich Gotham joins to discuss taking Jayson Tatum with the 3rd overall pick, being patient with the development of players and if there were any potential trades out there.

9:53 - Kyle Draper, A. Sherrod Blakely, and Brian Scalabrine break down the selection of Jayson Tatum and talk about the rumor that the Celtics were in discussions with the Pacers for Paul George. 

13:15 - Tom Giles, Michael Holley, and Kayce Smith debate if it was worth trading down to the 3rd pick to draft Tatum and how Tatum will always be compared to Markelle Fultz for his whole career.