Manuel Pellegrini: "I wanted to change all of my players at half-time, all 11 of them.
"The whole team was a disaster in the first half. My team wants to win every game and wants to win the FA Cup.
"I was very worried at half-time because I talked with the players a lot before the match and said that, in the FA Cup, teams that play in a lower division have a lot of motivation.
"If you don't play with 100 percent intensity and desire you can lose and go out of the competition and we were jogging in the first half. If you play like that you can't win.
"The whole team didn't do the things that we normally do in the first half, the most important thing for me is Watford didn't score the third goal.
"If they'd have scored that the game would have been finished. But the reaction was there and we played a really good second half."