Fernando Alonso has been given the final green light to return to Formula One action in this weekend 's Malaysian Grand Prix . For the first time since his accident in pre-season testing in Barcelona in mid-February , Alonso will step back into his McLaren for Friday practice at the Sepang International Circuit . The double world champion sustained concussion from the crash at the Circuit de Catalunya which forced him out of the final test , as well as the season-opening race in Australia 11 days ago . Fernando Alonso gives the thumbs up as he is given the green light to race at the Malaysian Grand Prix . Alonso looks in good spirits as he arrives at the Sepang International Circuit . Alonso missed the first race of the year after crashing during pre-season in Barcelona . Alonso shakes hands with a member of the McLaren team in the garage . But following a considerable amount of speculation over his future , and numerous tests , the Spaniard has cleared the final hurdle via an FIA medical inspection in Sepang . An FIA statement read : 'In accordance with normal procedures , McLaren-Honda driver Fernando Alonso was this morning ( Thursday ) examined by the FIA medical delegate and chief medical officer at the Sepang circuit medical centre . 'During the examination the driver passed all mandatory fitness tests and has thus been declared fit to race in this weekend 's Malaysian Grand Prix . ' A happy Alonso later tweeted : 'Green light to race . Thanks to @ fia and @ McLarenF1 for the work , professionalism and help on this last month . # ready . ' Williams driver Valtteri Bottas has also been passed fit after suffering a back injury . Bottas will be on the grid for Sunday 's Grand Prix in Kuala Lumpur . Williams driver Valtteri Bottas has also been passed fit to drive in Malaysia after undergoing his own medical checks by the FIA . Bottas was forced to sit out Melbourne after sustaining a back injury during qualifying but following rest and rehabilitation , the Finn has been cleared to race . A Williams statement read : 'Following the injury Valtteri sustained to his lower back during qualifying for the Australian GP , he has been with a leading physiotherapist who has been working with Valtteri and his trainer to make sure he received the best treatment possible ahead of this weekend 's race . 'The team has always been fully supportive of Valtteri and his determination to return to the cockpit . 'Following final approval by the FIA medical team in Malaysia today ( Thursday ) , we are pleased to confirm Valtteri will be back in the FW37 this weekend for the Malaysian Grand Prix . ' Soon after Bottas tweeted : 'Passed the medical tests and I 've been given green light from @ fia to race this weekend ! Lets do it ! # WeAreRacing # MalaysianGP # 77 . '
Fernando Alonso given green light to race in Australian Grand Prix . Alonso crashed in pre-season in Barcelona and missed the Malaysian GP . Williams driver Valtteri Bottas also fit to drive after a back injury .