The British driver’s participation had been in doubt after he broke the scaphoid bone in his right wrist during practice for the last round at Surfers Paradise in Australia two weeks ago.
But, after completing ten laps of Thursday's test session, the 27-year-old RuSPORT driver was given the all-clear to practice.
“I tried out the car this morning and everything seemed to go quite well with my wrist,” said Wilson.
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“We tested a couple of different wrist braces and positions and were even able to complete a lap without the brace. We now have some ideas for tomorrow and I'm ready to give it another go.”
Dr Chris Pinderski, ChampCar's medical delegate, was happy with Wilson's condition, but ahs yet to decide whether he will race or not.
Pinderski said: “I examined Justin after his short test this morning and at this point I am confident that his wrist is well enough to participate in competition this weekend.
“He will, however, be re-examined after every test and practice session to determine the health of his wrist.”
If Wilson is unfit to race, his place will be taken by GP2 Series driver Adam Carroll - who will be making his ChampCar debut.
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