Eugene Laverty has suffered a fractured hand in a 315kph crash during World Superbike Championship testing at Phillip Island in Australia.
The factory Aprilia team expect the Toomebridge rider will recover in time for the series opener later this month.
Laverty sustained a fracture of the third metacarpal in the crash.
"Brake pads got knocked back after a wobble entering turn one at 315kph. No brakes so I had to put the bike down - big ole crash," Laverty tweeted.
The 25-year-old also banged his head on the track and slapped his right hand hard after falling from his Aprilia RSV4 machine.
Laverty has decided to fly out his specialist therapist to treat his hand in Australia, so he can be ready for the first round at Phillip Island.
Laverty, who was was fourth on a Yamaha in his debut season last year, will partner former World Superbike champion Max Biaggi in the factory Aprilia team.
He signed a two-year deal to ride for Aprilia in the World Superbike series in 2012 and 2013.
Laverty won both races at Monza in 2011 and also secured podiums at Silverstone and Magny-Cours.