Marc Marquez admitted to feeling a bit overwhelmed by his first MotoGP laps at the tight and twisty Le Mans circuit in France.
But the race winning rookie soon adapted, rising from seventh in the morning session to second and just 0.040s from Repsol Honda team-mate Dani Pedrosa in the afternoon.
“In the first session I got a bit overwhelmed, because I could tell that the track was not allowing much space for me between the corners with this bigger bike and faster pace. I didn't have much time to think,” said the world championship leader.
“I was calmer in the afternoon and things went much better. This track is all about accelerating and then braking, although the final sector is more twisty and has some longer corners.
“It is only Friday, and we still have work to do. Tomorrow, if the track is dry, we will improve our times - but the forecast predicts rain. With a little luck, on Sunday we will have a dry track and be able to have a good race"