Fresh soft rear for Fernandez and he goes back to the top and down to a 1m52.050s.
Czech MotoGP, Brno - Saturday Practice Results

Chequered flag is out in FP2 and it's Fernandez with that late time attack who ends fastest.
Marquez and Vinales complete the top-three ahead of Aldeguer, Ogura, Acosta, Di Giannantonio, Bezzecchi, Moreira, and Mir in the top-10.
Marquez back to the top now, 0.046s ahead of Fernandez. Same soft tyre he started the session with for Marquez, 10 laps on it, so Sprint distance.
Bezzedchi up to third now with his latest lap, still only Fernandez and Marquez that have lapped in the 1m53s, though.
Bezzecchi then quickly moved back to fourth by Acosta, who also runs a 1m53.0s, but on a medium rear.
Martin and Bezzecchi both out on fresh soft rears towards the end of FP2. Bezzecchi up to P5 and Martin to P8 after their first laps of this final run.
Martin has just run off in the gravel on the exit of turn seven as he was practicing the long lap loop that he'll have to do twice in tomorrow's race.
Fernandez back to the top of the times now over Marquez, they're both into the 1m52s now.
Acosta and Bastianini also in the top-10 on the medium rear. Martin also on a medium rear but down in 11th - that's still ahead of Bezzecchi, though, who is only 12th on the soft.
Raul Fernandez was initially fastest early on in FP2, but he's been replaced by Marc Marquez by 0.055s.
Fernandez one of the only riders running a medium-compound rear tyre at the moment, most of the field running softs.
Pit lane is open at Brno and we are underway for 30 minutes of FP2.
The MotoGP lap record was set at Brno last year by Francesco Bagnaia in qualifying at a 1m52.303s, but Ai Ogura's lap in Practice yesterday was almost 0.6 seconds quicker than that as the top-seven in Practice - including Bagnaia himself - all went under last year's record.
Conditions are cooler this morning than yesterday afternoon, when track temperatures were up towards 50C, by around 10C, so further improvements on Ogura's 1m51.735s lap are to be expected.
Welcome to live coverage of today's MotoGP qualifying session from Brno, which is due to get underway in around 45 minutes at 10:50 local time.
FP2 will be starting in just a few minutes.

