In the Moto2 class, after Kohta Nozane suffered an injury at the Portuguese GP, the Correos Prepago Yamaha VR46 Master Camp structure has been forced to find a replacement for this weekend's Grand Prix of the Republic of Argentina.

Soichiro Minamimoto joined Manuel Gonzalez at the Autódromo Termas de Río Hondo for the second round of the 2023 Moto2.

[1] In the Moto3 class, Andrea Migno appeared in this race, replacing Lorenzo Fellon of the injured CIP Green Power team.

Lorenzo Fellon suffered a shoulder injury due to a severe crash at the Portimao test before the first round.

Marco Bezzecchi set the best time 1:45.354 and was the fastest rider at this session ahead of Luca Marini and Jack Miller.