Ducati test rider Pirro to stand-in for injured Colombian.
Pramac Racing have announced that Yonny Hernandez will not be available for the first MotoGP test of 2015 at Sepang on 4-7 February due to a shoulder injury.
During a recent dirt track training session, the Colombian rider was involved in a crash and suffered a left shoulder dislocation.
Tests showed microfractures, without any injury to ligaments or tendons and recovery time is estimated to be three weeks.
Hernandez will be available for the second test session of 2015 at Sepang scheduled for 23-26 February.
Pramac Racing has also announced that Michele Pirro, official Ducati test-rider, will replace Hernandez in the first test session test in Malaysia.