West Ham have offered a £25,000 reward for information leading to the arrest and successful prosecution of burglars who broke into Kurt Zouma's home.
No-one was harmed but "items of significant value and of huge personal and sentimental importance" were taken.
"To have someone break into your home is a terrifying experience," said West Ham joint-chair David Sullivan.
"I hope this reward will help bring the individuals to justice and prevent others from going through a similar ordeal."
Zouma, 29, did not play in the match against Palace, which finished 1-1 at London Stadium.