DeMar DeRozan sat out the Chicago Bulls' 126-109 loss to the New Orleans Pelicans on Thursday due to a groin strain which they feared may turn into "something bigger".

The loss meant the Bulls have suffered their fifth loss from their past six games, sliding to a 42-31 record and hanging on to fifth spot in the Eastern Conference.

DeRozan had been feeling some tightness in his groin recently, with a modest return of 21 points, four rebounds and two assists in Tuesday's 126-98 loss to the Milwaukee Bucks before sitting out against the Pelicans.

"DeMar knows his body better than anybody else," Bulls head coach Billy Donovan told reporters before Thursday's game.

"I think he felt like, 'Okay, this could get into something else a little bit more significant if I don't take care of this.'

"We just don't want it to turn into something bigger."

Donovan said the Bulls would know more on DeRozan's status on Friday ahead of their next game against the Cleveland Cavaliers on Saturday.