Man United were the dominant side for much of the contest but they could not fashion themselves any real goalscoring opportunities despite all their possession.
The game was eventually settled by an Eden Hazard goal, although John Terry appeared to foul Radamel Falcao in the build-up but it was given by the officials.
Despite the result, Mata feels United were the better side against the Premier League leaders and that the team can be happy with how they played.
Speaking about the game, Mata said: “I felt proud of the game the team had played, keeping the ball possession, controlling the game and creating chances to score, and all this at Stamford Bridge against the leader…
“As our manager said after the game, we were loyal to our football idea, and despite the score didn’t show that, if we keep playing like this there will be many more wins than defeats, I’m pretty sure of that. Besides, the team showed personality by playing that way against such a tough opponent, who gave no space in their half of the pitch and defended with so many players.
“Obviously, we also made some mistakes we have to learn from in the future. But overall that was my feeling about the game we had played: pride.”
It was a perfectly executed game plan from Chelsea boss Jose Mourinho, who won’t care about the performance as long as he gets the result.
On the other hand, United will take a number of positives away as they head into the final few fixtures of the campaign. Despite losing the likes of Michael Carrick and Daley Blind to injury, United were excellent to a man and can count themselves incredibly unlucky not to earn at least a point.