Jack Miller topped the timesheets in opening practice as the French MotoGP weekend began under a dark cloud.
The world of motor racing was left reeled from the shocking news of Nicky Hayden's cycling crash that has left the former MotoGP Champion in a critical condition in hospital.
While the thoughts of all in the paddock were with the America, the show had to go on, starting with Friday's first practice.
On a wet and cold Le Mans circuit, Miller set the early pace before Jorge Lorenzo and then Maverick Vinales took over at the front.
Midway through the session, championship leader Valentino Rossi was down in 17th place, Vinales was leading, and Marc Marquez was P13.
As the track conditions improved, Marquez went quickest with a 1:41.837 but that was obliterated by Miller's 1:38.204. The Marc VDS leapt up the order when he swapped his wets for slicks.
That prompted others to make the switch. Marquez put in a late improvement to close the gap to 1.2s while Johann Zarco, with a new Tech 3 Yamaha deal in the bag, was third.
Rossi finished P8 with Vinales falling to 10th.
— MotoGP™ ??? (@MotoGP) May 19, 2017
1 Jack MILLER EG 0,0 Marc VDS 1'37.467
2 Marc MARQUEZ Repsol Honda Team 1'38.755 1.288
3 Johann ZARCO Monster Yamaha Tech 3 1'39.248 1.781
4 Cal CRUTCHLOW LCR Honda 1'39.607 2.140
5 Loris BAZ Reale Avintia Racing 1'40.427 2.960
6 Karel ABRAHAM Pull&Bear Aspar Team 1'40.528 3.061
7 Bradley SMITH Red Bull KTM Factory Racing 1'40.817 3.350
8 Valentino ROSSI Movistar Yamaha MotoGP 1'40.894 3.427
9 Alvaro BAUTISTA Pull&Bear Aspar Team 1'41.024 3.557
10 Maverick VIÑALES Movistar Yamaha MotoGP 1'41.307 3.840
11 Andrea IANNONE Team SUZUKI ECSTAR 1'41.562 4.095
12 Jonas FOLGER Monster Yamaha Tech 3 1'41.644 4.177
13 Dani PEDROSA Repsol Honda Team 1'41.854 4.387
14 Andrea DOVIZIOSO Ducati Team 1'41.871 4.404
15 Danilo PETRUCCI OCTO Pramac Racing 1'41.887 4.4206
16 Jorge LORENZO Ducati Team 1'41.947 4.480
17 Scott REDDING OCTO Pramac Racing 1'42.040 4.573
18 Tito RABAT EG 0,0 Marc VDS 1'42.094 4.627
19 Sam LOWES Aprilia Racing Team Gresini 1'42.243 4.776
20 Sylvain GUINTOLI Team SUZUKI ECSTAR 1'42.891 5.424
21 Hector BARBERA Reale Avintia Racing 1'42.953 5.486
22 Aleix ESPARGARO Aprilia Racing Team Gresini 1'43.114 5.647
23 Pol ESPARGARO Red Bull KTM Factory Racing 1'43.519 6.052