The Spaniard has endured a difficult few months at Stamford Bridge, after the summer saw him linked with the likes of Manchester United, Arsenal and Liverpool.
And since the arrival of Mourinho, the former Valencia man has found a first team place hard to come by, despite being arguably Chelsea’s best player over the past two seasons.
And when asked if he felt he had improved since being sidelined by the Special One, he replied:
“To be honest I don’t know. I have felt the same. I just try to improve every season.
“I have just kept going.
“I have trained well and been getting ready for every game. That’s it.”
Mata appears to be back in the frame for first team football, after starting last night’s 4-0 Champions League demolition of Steuau Bucharest.
The start came after Mata came off the bench to provide the equalizer for John Terry in the 1-1 draw against Spurs at the weekend, and revealed he enjoyed the chance to play from the start last night.
“I really enjoyed playing – it is important for us to play with the ball. I was happy with the way I played,” he added.
Mourinho seemed impressed with his performance as well, adding:
“He played very good with the ball, as he always does.
“And he played very good without the ball, as he never did.”