Tech 3 Racing Team rider Bradley Smith says he is still hopeful of racing in the season-ending Moto2 Grand Prix in Valencia despite suffering a broken left collarbone in Sepang on Friday.
Smith's accident came two days before the tragic death of MotoGP rider Marco Simoncelli on the same track.
Oxford-born Smith says he will return home to have more checks before deciding whether to ride in Spain.
"The shoulder should be fine but we need to wait and see," said Smith.
The 20-year-old crashed on the first lap of practice at Sepang when a freak burst of rain caused Jules Cluzel, Marc Marquez and Smith to crash at turn 10.
He high sided and hit Marquez as he slid in the gravel trap.
Smith recently signed a deal to race in the MotoGP World Championship in 2013 and 2014 and will race for Monster Yamaha Tech 3 team when he switches to MotoGP.
"The initial crash was bad enough but then I hit Marquez's bike quite hard and I think this is how I broke my left collarbone and also took a big hit on my chest," added Smith.
"I've also got a bruised left lung and that is causing me quite a lot of discomfort.
"When I get home I'll have more checks to make sure the recovery is going well but it is too early to decide if I can race in Valencia."
Smith's Tech 3 Racing Team also paid tribute to Simoncelli on his website following Sunday's tragic accident.
"Bradley Smith and the Tech3 Racing Moto2 team extends its deepest condolences to the family, friends, and colleagues of Marco Simoncelli, who succumbed to injuries he received in this afternoon's Malaysian Grand Prix," said the statement.
"RIP Super Sic - a much-loved star on and off the track."