Barcelona forward Raphinha was booked on Tuesday night after removing his shirt to show a message of support for Vinicius Jr after the Real Madrid star was racially abused at the weekend.
Real's match against Valencia was briefly halted at the Mestalla Stadium on Sunday after Vinicius Jr, 22, was subjected to sickening racist abuse from a portion of the home crowd.
The harrowing scenes have been condemned all across Europe in recent days and several high-profile names have spoken out in support of Vinicius Jr, who was also sent off by referee Ricardo de Burgos Bengoetxea in the final moments of the LaLiga clash, which Valencia went on to win 1-0.