Chelsea won 2-0 against Palace on Sunday night.
The Blues secured the final in the FA Cup after beating Crystal Palace 2-0 at Wembley thanks to goals scored by Ruben Loftus-Cheek and Mason Mount.
Of the controversial incidents of the night was Kai Havertz diving in the penalty area and getting booked for it.
But former Spurs midfielder Jamie O’Hara believes Havertz deserved a red card.
O’Hara said: “Havertz’s first touch is absolutely brilliant, he takes it past the defender but as he goes past him, he looks like he got fouled right on the edge of the box, he’s looking for the penalty. It would have been right on the edge.
“The referee books him for diving. Now when you watch it back, instantly, you get the replay and you come back and Havertz has dived, it’s a shocking dive as well. Absolutely no place for it in the game.
“It’s actually stupid from him because his first touch takes him past the defender anyway, he’s in. He could get a shot off, he’s one-on-one with the keeper almost. Shocking from him, I hate to see it in the game. We need to get it out as quickly as possible. I would have sent him off.”