GP3 will stage two races in quick succession on Sunday morning, as race organisers scrambled to produce a new schedule to allow the support series to hold both of this weekend's planned events at Sochi Autodrom.

The first GP3 race of the weekend was originally scheduled for 1.30pm local time (11.30am BST) but a big accident for Carlos Sainz led to major damage to the barriers in turn 13 which forced race organisers to cancel the plans.

Sainz himself was airlifted to a local hospital after the accident, but a full body scan had confirmed that he had suffered no injuries and that at no time did he lose consciousness, but he will still be kept in for observation overnight as a precaution. The Spanish driver was soon tweeting from his hospital bed and snapped watching F1 qualifying that went ahead without him.

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Initially it seemed that this weekend's schedule was too packed to allow the GP3 race to be reschedule. At other events the race is held late on Saturday afternoon, but the sunset time in Russia makes this impractical as the near pitch-black finish to Friday's practice session demonstrated all too clearly.

Instead, organisers have now agreed to hold both race 1 and race 2 on Sunday morning, on either side of the GP2 sprint race. The original duration of the first race will be shortened by five laps to match the same length as the second race. The timings of the morning's events have been adjusted to allow the extra event, with the timetable now looking like this:

09.00am local time (7:00am BST) - GP3 Race 1 (15 laps or 30 minutes)
10.05am local time (8:05am BST) - GP2 Sprint Race (21 laps)
11.30am local time (9.30am BST) - GP3 Race 2 (15 laps or 30 minutes)

The GP3 race 1 will use the starting order as set by Saturday morning's qualifying session. Koiranen GP's Matt Parry handed a three-place grid penalty for impeding Campos Racing's Konstantin Tereshchenko during the session and will now start from ninth place.

The GP3 race 2 and the GP2 sprint race will both use a starting line-up set by the finishing order in the respective first events, with the top eight in each case inverted under reverse grid rules.

The GP2 feature race will run on Saturday afternoon at 4.40pm (2.40pm BST) as originally scheduled.