Palace moved above Leeds into 11th with a 1-0 win over West Brom with Zaha's stance before kick-off grabbing the headlines. The Ivory Coast international stood tall while the rest of his Palace team-mates and their opponents took the knee.
The 28-year-old revealed last month when speaking at the Financial Times' Business of Football summit that he would no longer perform the gesture against racial injustice, which has been followed by Premier League players, officials and staff since June.
"As a society, I feel we should be encouraging better education in schools, and social media companies should be taking stronger action against people who abuse others online - not just footballers," Zaha said in a statement. "I now just want to focus on football and enjoy being back playing on the pitch. I will continue to stand tall."
Once the action began, Luka Milivojevic scored the only goal from the penalty spot to plunge the Baggies ever closer to a return to the Championship.
Sam Allardyce's men remain eight points adrift of safety in 19th with just nine games left to save themselves.
Standout matches today