Robert Kubica will be back behind the wheel of the Alfa Romeo C39 in opening practice at the Hungaroring.
Quitting Williams at the end of last year’s championship, Kubica was snapped up by Alfa Romeo as the team’s official reserve driver.
The Pole tested the Ferrari-powered C39 during pre-season testing and was back in action in first practice for the Styrian Grand Prix.
He will again drive the car at this weekend’s FP1 for the Hungarian Grand Prix.
“Developing the C39 quickly and effectively will be one of the key aspects of the midfield battle,” said team boss Fred Vasseur.
“And Robert is one of the biggest assets the team has on its side.
“He did a thoroughly fine job in Austria last week and I am happy to have him in the car once more.
“The data he provided our engineers have already proven valuable, but there is a lot of work still to be done and having three great drivers to receive information from is a definite advantage.”
Kubica will replace Kimi Raikkonen for the morning session on Friday having taken Antonio Giovinazzi’s car at the Red Bull Ring.
Last time out he completed 31 laps, finishing P18.
Kubica said: “Driving one of these cars is always an incredible feeling and therefore I can’t wait for Friday.
“Emotions aside, we cannot forget how crucial car development is, especially in this compressed 2020 season.
“The team needs data and feedback and providing as much valuable information is what I am here for.
“We had a productive weekend last time out and my aim is to help the team make another step forward here in Hungary.”
Alfa Romeo’s decision to run Kubica is not only for the development of the car but it also means should either Raikkonen or Giovinazzi be forced to sit out a grand prix weekend for a positive coronavirus test, Kubica will be up to speed.