Blues boss Jose Mourinho confirmed Mata would be rewarded with a start against Steaua Bucharest on Tuesday and the player himself has vowed to keep working hard to stay in the manager's favour.
"Obviously everyone wants to play but, I am a professional, I respect all of my team mates and what I want to do is enjoy it on the pitch, and I think against Tottenham I did that," Mata said.
"We needed to improve and we tried to, and when I came on I just tried to give my best for the team.
"It is what I did since I came and it is what I am going to do until the end. I am happy with the second half, but it wasn't enough to win.
"Last season we won here and this season we wanted to win again, it wasn't possible but the team showed that we can fight until the end."
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