Injury-riddled Washington is also without forward Kris Humphries, who misses his fourth straight game with a sore right knee. Star guard Bradley Beal remains out with a right leg injury and is missing his 16th straight game.
Gortat had 12 points and 10 rebounds in a 105-99 win Saturday at Orlando. He is averaging 13.4 points and 9.7 rebounds in 32 games.
Nene replaced Gortat in the starting lineup Monday. Nene had missed the victory over the Magic with a strained right triceps.