Ramsey resident Cal Crutchlow says he will continue to race despite doctors advising him to take eight to 10 weeks off after he broke an ankle in a crash.
Crutchlow crashed in final practice for the British MotoGP and missed qualifying but doctors let him race.
The Yamaha rider raced from the back of the grid to finish sixth, 15 seconds behind winner Jorge Lorenzo.
The Assen MotoGP takes place on June 30 and is the first of three races on successive weekends.
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