Red Bull KTM factory rider Pol Espargaro has been ruled out of this weekend’s Aragon MotoGP after suffering a broken left radius during an FP4 highside.

The Spaniard is in the middle of maybe the best form of his career, however, after impressing through the opening free practice sessions, Espargaro highsided out of turn nine, landing on his left hand side having to be stretchered away.

After going to the medical centre for check-ups, it had been announced that Espargaro was off to Barcelona to undergo further tests and surgery should that be deemed the best course of action.

This leaves KTM with just one rider for tomorrows race and that one rider being test rider Mika Kallio, with the Finn in this weekend replacing Johann Zarco. Kallio will start tomorrows Grand Prix from nineteenth position. 

With uncertainty over Espargaro’s availability for the Thai Grand Prix in just two weeks time, KTM bosses will be left  scratching their heads and possibly begging second test rider Dani Pedrosa for a one off favour.