on january 2, 2019, williams was waived by the brooklyn nets. he appeared in 17 games for the long island nets, where he averaged 21.0 points and a league-leading 14.7 rebounds in 26.9 minutes per contest. williams did not appear in a game for brooklyn during his first stint. nine days later the brooklyn nets re-signed williams to another two-way contract. and he made his debut for the brooklyn nets on the same day, coming off the bench in a 122–105 loss to the toronto raptors with eight points, eight rebounds and two assists.