Gillespie was signed to a contract during the first week of this month after going undrafted.
He averaged 15.6 points per game for Villanova last season, shooting 41.5% from three-point range. Gillespie averaged 11.3 PPG, 5.3 RPG, 4.3 APG and 1.5 SPG in four Summer League contests.
With Gillespie out indefinitely, it’s possible the Nuggets will look for another two-way option. They already have 20 players on their camp roster, according to our latest count.