Alan Pardew’s side comprehensively won the London derby at the Boleyn Ground on Saturday to enhance their chances of Premier League survival.
Glenn Murray put Palace in the lead in the 41th minute, and Scott Dann doubled the visitors’ advantage six minutes into the second half.
Murray made it 3-0 to the Eagles just past the hour mark but was soon sent off after charging into Winston Reid, with Enner Valencia pulling one back for West Ham in the 76th minute.
Palace were the better side against West Ham, and Collymore was effusive in his praise of the players’ display.
“Palace have been superb today, aggressive, fought for every second ball, winners across the pitch and with their pace they are always going to be a threat on the counter attack,” the former Palace striker wrote on Sportsyapper.com. “Great display!”
”A well deserved victory for Crystal Palace, their game plan worked very well,” said the 56-year-old. “They looked very strong, while West Ham now have a lot to ponder with some big games coming up.
“They dominated the game after Glenn Murray's red card but Julian Speroni was excellent in the Crystal Palace goal."
Palace did deserve to win today’s match, although statistically West Ham were the better team.
Sam Allardyce’s side had 66% of the possession, took 22 shots of which five were on target, and earned 11 corners.
Meanwhile, Pardew’s Palace had the ball just 34% of the time, had 12 shots, of which five were on target, and earned seven corners.
The main difference was that Palace took their chances and West Ham did not, although the hosts were not helped by Julian Speroni’s heroics in the Eagles goal.