In doing so, Chelsea made history by managing to win a match after trailing by two goals or more at half-time for the first time ever in the Premier League.
Neville, on co-commentary duty for Sky Sports at Stamford Bridge, compared Chelsea to “kids and babies” when attempting to explain the contrast of performances.
"What a great comeback for Chelsea, creating their own history having never done it before - coming back from two goals down,” Neville said.
"Devastation for West Ham, they contributed enormously to the game.
"But Chelsea, you can watch them in the same game and think two completely different things.
Relief for Chelsea against West Ham
"They looked like kids and babies for large parts of the game and then all off a sudden they come to life and they are a real force.
"They go into the top four and they'll into that game against Arsenal in the Carabao Cup semi-final on Tuesday so confident having come back in the last two games against Napoli and West Ham.
"West Ham, keep your heads up. If you play like that, you've got a great chance of staying up."