 On October 19, 2017, Teodosić made his NBA debut against the Los Angeles Lakers, recording 6 points and 6 assists.In the second game of 2017–18 season against the Phoenix Suns, Teodosić suffered a plantar fascia injury in his left foot and was put out indefinitely due to the unpredictability of the recovery time for such injury.On December 11, he returned on the court after 22 games of absence, against the Toronto Raptors, scoring 12 points and grabbing 7 rebounds in a 96–91 home victory.