MONZA Italy (Reuters) - Lewis Hamilton battled back from a troubled start to win the Italian Grand Prix on Sunday after Mercedes team mate Nico Rosberg cracked under pressure and saw his Formula One championship lead cut to 22 points.
Rosberg, whose 29th lap mistake at the first chicane cost him the lead and the race, finished second as dominant Mercedes celebrated a first one-two since Austria in June and their seventh in 13 races.
