Indianapolis MotoGP: Jorge Lorenzo leads Marc Marquez in practice

Yamaha rider Lorenzo set the pace for the majority of the session after posting the fastest time early on and then became the first rider of the session to go under 1m34s shortly after that.

He was briefly deposed by Marquez's Honda in the closing stages before retaking top spot by 0.093 seconds with little more than a minute remaining.

Marquez, who spent the first half of practice outside of the top 10, moved towards the sharp end with a sequence of quick laps shortly after the halfway mark.

The reigning world champion was able to regularly outpace Lorenzo through the first three sectors of the lap, but on three consecutive attempts he fell back through the short final sector.

Marquez then returned to the track with around five minutes remaining, and despite still losing a tenth to Lorenzo in the final few corners he had built up enough of a gap earlier in the lap to still set the fastest time.

Before that run for Marquez, Andrea Dovizioso used a soft rear tyre on his Ducati to match Lorenzo's benchmark to three decimal places.

In the end the Italian had to settle for third as the two Spaniards improved, but he remained clear of Dani Pedrosa and championship leader Valentino Rossi, who completed the top five.

The second Ducati of Andrea Iannone was next up ahead of Cal Crutchlow, who went straight on at the first corner in the middle of the session and took to the famous Indianapolis banking before rejoining the track.

The only other incident of note came very early on when Alex de Angelis suffered a low-speed fall in the Turn 4 left-hander, before getting back on the bike and rejoining a few seconds later.

At the bottom of the order, new Aprilia signing Stefan Bradl headed MotoGP returnee Toni Elias, who ended the session nearly five seconds off the pace in 23rd.

PRACTICE ONE TIMES: