Pierre Gasly got his Abu Dhabi weekend off to plan after topping the timesheets in this morning's practice session in the emirate, grabbing P1 late in a busy session ahead of former teammate Alex Lynn and title rival Antonio Giovinazzi.

The Red Bull test driver stopped the clocks at 1:50.940 late in an exciting session which saw the top spot swapping throughout, with the Williams tester making a late bid to bump his old teammate off but missing by just 0.062, with Gasly's PREMA teammate stopping the clocks at just over a tenth off him.

The session got underway in the usual hot, dry conditions, with times tumbling almost immediately: Jordan King, Nobuharu Matsushita, Gasly and Giovinazzi all found their way to P1 on the timesheets, but in a session which saw many drivers having off-track escapades it was clear that they were all pushing hard.

Mitch Evans pulled up early with a mechanical gremlin, but with most of the field coming in for fresh rubber the marshals were able to remove his stricken car quickly. When they returned it seemed clear that sector 2 would make the difference: Gasly set his best time at the 35 minute mark, but there was still time to be found in S2. Lynn found it and ran P2, Giovinazzi did too but struggled on the final sector and couldn't improve.

Gasly had his engine cover off with a few minutes to go, but he soon returned to the circuit: with the clock running out he had no need to push more, and was satisfied to lean on his earlier efforts. Behind the top 3 Matsushita will be annoyed to be pipped at the end of the session, but leads Norman Nato, Oliver Rowland, Jordan King, Johnny Cecotto and Sergey Sirotkin, all of whom were within a second of the top spot and looking for more this afternoon.

1. Pierre Gasly PREMA Racing 1:50.940
2. Alex Lynn DAMS 1:51.002
3. Antonio Giovinazzi PREMA Racing 1:51.067
4. Nobuharu Matsushita ART Grand Prix 1:51.149
5. Norman Nato Racing Engineering 1:51.687
6. Oliver Rowland MP Motorsport 1:51.700
7. Jordan King Racing Engineering 1:51.795
8. Johnny Cecotto Rapax 1:51.873
9. Sergey Sirotkin ART Grand Prix 1:51.892
10. Nicholas Latifi DAMS 1:51.964
11. Raffaele Marciello RUSSIAN TIME 1:52.005
12. Artem Markelov RUSSIAN TIME 1:52.281
13. Sergio Canamasas Carlin 1:52.385
14. Mitch Evans Pertamina Campos Racing 1:52.477
15. Luca Ghiotto Trident 1:52.664
16. Emile Bernstorff Arden International 1:52.751
17. Gustav Malja Rapax 1:52.762
18. Daniël de Jong MP Motorsport 1:52.987
19 Sean Gelael Pertamina Campos Racing 1:53.077
20. Nabil Jeffri Arden International 1:53.185
21. Louis Delétraz Carlin 1:53.650
22. Philo Paz Armand Trident 1:53.808