Racing Engineering drivers Lucas di Grassi and Dani Clos have each been issued with 10-place grid penalty for the next GP2 Series round at Monza.
The two were penalized after a stewards' inquiry determined that both were responsible for causing accidents in today's sprint race at Spa.
Clos drove into series leader Nico Hulkenberg at the first corner, putting both out of the race.
In di Grassi's case, he misjudged a passing attempt on Edoardo Mortara at the Bus Stop that also resulted in both being forced to retire.