The Blues boss was disappointed with the playing surface at the national stadium during Arsenal's 1-0 win on Sunday
In a press conference, Mourinho stated: "The pitch was a disaster. I couldn't believe the pitch was so bad and so slow."
"The weather didn't help too. But it was the same for both teams, so don't take it as an excuse."
The FA has responded saying that the pitch was "less mature than we would ordinarily wish for football, given the summer concert season and early start to the football calendar."
"We appreciate the feedback on playability and will continue to improve the quality of the pitch, which we have every confidence in as it matures."
To watch the interview with Jose, click here.