The club\'s No.2 coach is thrilled that the Brazilian ace is returning to his best form following their victory over the Dutch side, while stressing Benzema\'s injury is not serious.Real Madrid assistant coach Aitor Karanka has acknowledged that everyone at the club is happy with Kaka\'s rise in form.A series of injuries have prevented the Brazil international from showing his true colours since joining Madrid from AC Milan in 2009 in a reported €68.5 million deal. It led to speculation in the summer transfer window that Kaka could move on, despite the 29-year-old always affirming he wished to prove his worth at the club. He has already made seven appearances for the club this season and played an important role in the 3-0 victory against Ajax in the Champions by scoring his side\'s second goal.Questioned about the Brazilian\'s form, Karanka told reporters at a post-match press conference: \"The ones who have trusted him have to be happy to look at the joy that has been present in his face for some time. \"A great player like him, who has been through what he has been through, deserves to be like he is now; players have to realise they can do here the same things they did in other moments of their careers.\"The assistant to Jose Mourinho conceded his side took their foot off the when Karim Benzema\'s goal went in to make it 3-0, but noted Ajax were never a threat to Iker Casillas\' goal.\"With the third goal, right after the start of the second half, we gave more possession to Ajax, but we never felt danger,\" Karanka explained. \"We were always very calm.\"Getting three more points, especially at home, is always important. After this game, Mourinho\'s suspension is over.\"Benzema was taken off in the 75th minute with an injury, but Karanka stressed the Frenchman is not in doubt for the weekend clash at Espanyol.\"We will have to see how he recovers, but it should not be anything worrying,\" the assistant coach affirmed.