He will be hoping to keep his place in tomorrow’s Champions League final group tie at home to Liverpool, although Mourinho must give Joe Cole a fitness test after missing the Boro game.

However, Robben discounted reports that his slow comeback from his persistent injury problems have led to differences with Mourinho that may have put his Stamford Bridge future in doubt.

“I have got a very good relationship with the manager, that is the only thing I can say. I hear things sometimes but they are just nonsense,” he declared.

“I am very happy at Chelsea and I will stay here for a long time. There is never any pressure over the injuries, I have just had the time over the past couple of weeks to come back.”

Mourinho has challenged Robben to reproduce his best form in the second half of the season, having been troubled by his injury problem, which affects his hamstring and back.

“He needs to play and score goals, to get back to great performances and show what he can do. We are in early December and he has given us very little this season,” declared the Chelsea boss.

“A player like him has to give us a lot. We have been waiting for him, now he is back and we know what he can give to our team. He will give us points and victories, there is no doubt about that.”

Robben is determined to do exactly that, admitting his relief at coming through his return to action without any fresh problems and having made such a positive impact against Boro.

“I have been training for more than a week with the squad but this was the first game I was ready for. After the first five minutes, I had to wake up a little bit but after that I felt quite good,” he said.

“I also know that I can do much better though. For me, the most important thing is that I got through this game. But there is much more in me.”

As for his injury problems, he added: “It is difficult to say exactly where the problem is coming from. We had to work on a lot of things – strength in the left hamstring, but also work on the back.

“It was the third time this season, so that was enough for me, the medical staff and the manager. We said we had to sort everything out before I started playing again.

“Otherwise, I could keep falling back again. But I have to thank the medical staff as they did a great job and have brought me back. Now I can build on this.”

Chelsea were indebted to John Terry’s header for their victory against Boro, although it was credited as an own goal to Fabio Rochemback as it deflected in off his leg.

Hernan Crespo missed the game with a rib injury, while Claude Makelele is still sidelined, but Didier Drogba returned after a knee injury – along with Robben.