Sergio Perez has seen his five-place grid penalty for this weekend's Austrian Grand Prix upheld by stewards.
The FIA have agreed that the Force India driver was to blame for the last-lap crash between him and Felipe Massa's Williams at the Circuit Gilles Villeneuve a fortnight ago.
Perez and Massa could not consult with the authorities in the immediate aftermath of the Canadian Grand Prix as they were undergoing medical checks, and therefore the case was reviewed after practice in Spielberg on Friday.
An FIA statement read: "Having considered the new elements including hearing from team representatives and both drivers, and having viewed all available video evidence and examined both teams' and the FIA's telemetry, the Stewards decide that the original decision as handed down in Document 44 of the Canadian Grand Prix shall stand".
Austria is hosting a Grand Prix for the first time since 2003, and Mercedes are enjoying the Red Bull Ring so far.