The driver line-up for the first in-season test is beginning to shape up, with six teams having now confirmed their line-up for post-Spanish Grand Prix two-day test.
Renault have previously confirmed that Esteban Ocon will drive for them alongside Kevin Magnussen, but the Frenchman will also get an outing with Mercedes.
Ocon, who is currently competing in the DTM championship with Mercedes, is on loan to Renault for the 2016 season, but will also get his first taste of the W07 next week, sharing duties with Nico Rosberg.
Meanwhile McLaren have confirmed that Stoffel Vandoorne will drive alongside Jenson Button during the test. The Belgian stood in for Fernando Alonso during the Bahrain GP and scored the team's first point of the season.
Alfonso Celis Jr will take the reigns at Force India on both days.
With the regulations stipulating that a young driver must drive on at least two of the four in-season test days, it would leave Force India with the possibility of running Sergio Perez and Nico Hulkenberg at the second test after the British GP in July.
Williams have confirmed that Alex Lynn will drive on one of its two days, but has yet to confirm if Valtteri Bottas or Felipe Massa will join him.
Esteban Gutierrez and Romain Grosjean will share duties for Haas, with the American outfit opting not to run a young driver at the first test.
