Sergio Perez has been handed a reprimand for having blocked Timo Glock during opening practice for the United States Grand Prix.
The Mexican was deemed by the race stewards to have made several weaving maneuvers in front of Glock on the entry to Turn 20 towards the end of FP1. After being summoned to see the stewards following the end of the first session, and having admitted that he made a mistake, Perez was given a reprimand.
It is the second reprimand of the season that Perez has got, having been punished in Abu Dhabi for impeding Bruno Senna during qualifying.
If drivers get three reprimands in a season, of which at least two are for driving infringements, then the driver will be handed a 10-place grid penalty.