Williams F1 reserve driver Jack Aitken will make a return to F2 for the support series' next two races in Monaco and Baku with the HWA Racelab team.
Aitken made his Formula 1 debut with Williams at the Sakhir Grand Prix last year to replace George Russell who stood in for the ill Sir Lewis Hamilton at Mercedes, and is the British team's official reserve driver for this year.
The driver is replacing Matteo Nannini, who will move to Formula 3 for the remainder of the season, HWA Racelab said in a statement.
"I was surprised but also very honoured that HWA asked me to support the team in Monaco and Baku. They are two of my favourite circuits and it is going to be a real pleasure! Aitken said.
"I know HWA from races in the past, in which we have competed against each other.
"I have always been aware of their high standard. I am looking forward to returning to Formula 2 and working with HWA, in order to get the absolute maximum out of the two weekends."