Complex sentence: Montoya tried to hold them all off but then Michael Schumacher made his move at the tight second corner and Montoya basically forced both of them off the track, leaving Barrichello in the lead.
Split into simpler sentences: Montoya tried to hold them all off but then Michael Schumacher made his move at the tight second corner. This resulted in both of them running off the track, leaving Barrichello in the lead.