 Emerson Fittipaldi and Michael Andretti would also be in the hunt, but championship leader Al Unser Jr's bid for three wins in a row ended on Lap 3 with a blown engine.While still in the lead, Robby suffered a burst left rear tyre in Turn One, handing the lead to Mansell on Lap 13.On Lap 26 Michael Andretti seized the moment and pounced on Nigel in Turn 8.