Marc Marquez has set a goal of a return to MotoGP action at Brno, according to his surgeon Xavier Mir.

Dr Mir will operate on the MotoGP world champ's broken arm in Barcelona tomorrow, is hoping that Marquez will be sufficiently recovered for the Czech Republic race but will not know the full extent until he operates.

"Marc won't be at Jerez and the goal is for him to be able to run again at Brno," Mir told a Catalan radio station.

"It is an injury of some importance. If the nerve is not affected, we will be able to stabilise the fracture and reduce the deadlines."

Should Marquez' distal nerve have incurred some damage, the rehabiliation will be longer but Mir could not comment on the length of time.

Honda will not use a stand-in for Marquez this weekend at the second Jerez race and it is not yet known whether Cal Crutchlow, who broke his left scaphoid, will be in action either.

Crutchlow will also go under Mir's knife tomorrow to fix his break and then have to pass a trackside fitness test.