UPDATE: Due to the weather, there may not be any dry track action on Friday.

Track action on Friday's second and final day at the inaugural MotoGP test at Argentina's Termas de Rio Hondo circuit has been delayed due to rain.

Cal Crutchlow, Stefan Bradl, Alvaro Bautista and Hector Barbera - plus Moto2 riders Esteve Rabat and Nico Terol - are present for the fact-finding test, ahead of the circuit's race debut on the 2014 calendar.

Honda LCR rider Bradl was fastest on Thursday.