Formula One supremo Bernie Ecclestone has come out in defence of under-fire Michael Schumacher following his woeful return to the sport.After more than three years in retirement, Schumacher has been a shadow of his former self in the four races so far on his comeback with Mercedes GP. In particular, the seven-time champion has been out-qualified by team-mate Nico Rosberg in Bahrain, Australia, Malaysia and China, and finished behind his fellow German in all the races.He added: "At the moment he's something of a newbie who has to get accustomed to the trade again. "Michael would have never returned had he not been convinced that he can do the job. "He is not a tourist in the paddock, he's here to win. And he will win again."