Avalanche Andretti's driver Jake Dennis races during the 2023 Cape Town E-Prix in Cape town on Feb 25, 2023. (PHOTO / AFP)

MEXICO CITY -- Formula E world champion Jake Dennis will drive Red Bull's Formula One car in first practice for next month's Abu Dhabi season-ender, team boss Christian Horner said at the Mexico City Grand Prix on Friday.

Teams have to give rookie drivers a session in each of their cars once a season and Red Bull, who have already won both F1 championships, are leaving it until the end to fulfill their obligations.

READ MORE: China returns as Formula E drops Cape Town and Jakarta

"Jake Dennis is going to be driving one of the cars and Isack (Hadjar) will be in the other car," Horner told reporters.

Frenchman Hadjar also drove for Red Bull-owned AlphaTauri in first practice in Mexico.

READ MORE: Verstappen ready for more milestones in Austin

Horner said Abu Dhabi was a circuit Red Bull already had plenty of data on and the first practice session had little set-up value since it was held in the heat of the day rather than at night.

READ MORE: FIA to take action after Qatar GP 'extreme weather'

Britain's Dennis, who won the all-electric Formula E title this year with Avalanche Andretti, has been carrying out a role as a Formula One simulator driver for Red Bull and is older than most rookies at 28.

Ferrari Academy driver Oliver Bearman, who drove for Haas in first practice on Friday, is 10 years younger.