The Boston Celtics need to bounce back after losing two games in a row, but they might have to do so without All-Star point guard Kyrie Irving who is questionable against the Brooklyn Nets with a thigh injury.

According to the latest injury update by the Celtics, Kyrie Irving is 50-50 to play against the Nets due to a right quad contusion which he probably picked up in their latest match against the Orlando Magic.

Irving's possible absence will be a huge blow to the Celtics who are still reeling from back-to-back defeats to the Miami Heat and Magic. Irving notched 22 points against Miami and followed it up with 25 against Orlando, but his efforts were not enough to catapult his team to victory.

On the season, Irving is averaging 22.7 points, 4.8 rebounds and 6.4 assists. He is also shooting 48.9 percent from the field, 49.7 percent from 3-point territory and 85.4 percent from the charity stripe.

The 26-year-old guard had a blunt assessment of the Celtics following their loss to the Magic. He pointed out that they are better than the majority of the NBA, but they are yet to prove it and show they can be a championship-caliber team.

It remains to be seen how the Cs will respond to Irving's challenge, but they might just be more motivated to step up with the five-time All-Star likely to miss the game against the Nets.