Formula One could revise its weekend schedule by tweaking the format of Friday practice sessions, according to sporting managing director Ross Brawn.
In its current format, Friday practice consists of two 90-minute sessions, but that could be changed in the future after Brawn admitted the schedule is open to discussion. F1's new owners Liberty Media are understood to be looking at race weekend formats as part of its widespread review as it continues to search for new ways of improving the sport. While Brawn revealed Friday's schedule could be tweaked, he said the length of races is unlikely to be affected.