"It was a shame because he got out in front of Kubica, and was looking OK, " added Brawn.

BBC: Michael Schumacher escapes Felipe Massa penalty

"Michael didn't have a lot of grip, he was on tyres that were very badly grained, so I'm not aware of anything unusual that happened, " added Brawn.

BBC: Michael Schumacher escapes Felipe Massa penalty

While other teams have added new parts to their car over the course of the first four races, Brawn's car is in the same spec as it was for the Australian Grand Prix at the start of the season.

BBC: Button expects close title battle