Chennai, Aug 4 - Seven times World champion Michael Schumacher's return to Formula One is great for the sport and he is bound to win a few races after getting himself 're-acclimatised' at Valencia, says India's only Formula One driver Narain Karthikeyan.

Speaking to IANS here Tuesday, Karthikeyan, 32, opined that 40-year-old Schumacher, who has agreed to come out of retirement after a nearly three-year break to fill in for the injured Felipe Massa of Ferrari, would find the going tough in Valencia later this month.

'Having seen Schumi and raced with him, he will be in the gym from 4 am to 10 pm working on his fitness. I would say that he is bound to win a few races this season,' Karthikeyan said.

'Talent does not vanish just like that. In Valencia, he will be thrown at the deep end, not knowing the circuit.