Following an MRI Sunday, Bogdanovic was diagnosed with an avulsion fracture in his right knee, with an associated soft tissue inflammation and a bone bruise, the Hawks announced. Bogdanovic has not yet met with doctors to figure out a treatment plan or a timeline for his return.

According to Mayo Clinic, avulsion fractures occur “when a small chunk of bone attached to a tendon or ligament gets pulled away from the main part of the bone.” Depending on the severity, Bogdanovic could require surgery.

Bogdanovic is averaging 9.9 points, 2.1 assists and 3.8 rebounds in 23.7 minutes per game, shooting 36.2% from 3-point range.

This is more tough injury luck for the Hawks. The team is already without Kris Dunn (right ankle surgery), Danilo Gallinari (right ankle sprain), rookie Onyeka Okongwu (inflammation, sesamoid bone, left foot) and Rajon Rondo (right knee injury maintenance). Trae Young also banged up his right wrist in Saturday’s loss.

For Monday’s game against the Sixers, Young is listed as probable, as are Bruno Fernando (left hip soreness), Kevin Huerter (left ankle soreness) and Tony Snell (inflammation, cuboid bone, right foot).