Racing Engineering driver Fabio Leimer has moved into the lead of the GP2 championship after the series’ races at Monza.
Leimer took advantage of a slow pit stop for Sam Bird in the feature race to claim his third victory of the season.
Bird was able to hang on to second, with the podium completed by his Russian Time team-mate Tom Dillmann.
It was a bad race for several other front runners.
Jolyon Palmer’s wheel detached following his pit stop, while team-mate Felipe Nasr suffered an oil leak and was forced to retire.
Sunday’s sprint race was won by Hilmer Motorsport driver Adrian Quaife-Hobbs.
The Brit took advantage of a slow start for pole sitter Alexander Rossi to move into a lead that he never relinquished.
The race was fairly uneventful, although a mid-race shower caught a couple of drivers out under braking for the first corner.
Rossi dropped to fourth but fought past Bird and Julian Leal to record his best GP2 finish.
It was another disastrous weekend for Stefano Coletti as he failed to finish in the points, while Force India reserve driver James Calado stalled from third on the grid and completed the race in 26th place.