Jorge Lorenzo failed to set a time in FP3 at the Qatar Grand Prix after needing medical attention following a big crash.
Lorenzo impressed on his first Repsol Honda outing on Friday, posting a faster time than team-mate Marc Marquez in the opening session.
Having trailed Marquez in FP2 later in the day, he was down on the tarmac 24 hours later after a highside accident early on Saturday.
As the three-time MotoGP champion came around turn six, he vaulted out of his seat and was left lying on the track, with his bike skidding into the gravel.
Lorenzo underwent an assessment at the track's medical centre, with Repsol Honda confirming he injured his back and arm in the incident.
After X-Rays in the medical centre to his back and arm, @lorenzo99 has returned to the Repsol Honda Team garage.Updates to follow.— Repsol Honda Team (@HRC_MotoGP) March 9, 2019
He returned to the garage for the final moments of the practice session and it remains unclear whether he will participate again ahead of qualifying in Doha.
While Lorenzo watched on, Marquez - who also came off his bike in the session - set the pace to secure his place in Q2.
However, both Lorenzo and Valentino Rossi will have to come through Q1 to join him in the battle for pole.Published 09 Mar 2019, 19:26 IST