The Miami Heat showed solidarity with the Los Angeles Clippers before Game 4 of their playoff series with the Bobcats.
After coming out of the locker room, the players went to center court and dropped their warm-up jerseys.
They also wore their shooting shirts backwards.
The Los Angeles Clippers took the same action on Sunday after a racist rant allegedly by their owner was obtained by TMZ.
The NBA is investigating Donald Sterling.
A decision on what actions the league will take is expected on Tuesday.