Robert Kubica is recovering from surgery on his right leg (tibia) following a fall on an icy street last week.
The news agencies Polska Agencja Prasowa (Poland) and Ansa (Italy) said the former BMW and Renault driver, who was already sidelined following his horror rally crash early last year, was operated on in Mantua, Italy.
Kubica's manager Daniele Morelli said the 27-year-old will remain in hospital for a few days.
"Now he just needs a little bit of rest," said Morelli in his first public comment about Kubica's latest injury setback.
Ansa agency said the surgery was carried out by an orthopedic specialist and proceeded normally. La Gazzetta dello Sport said the operation lasted two hours.
The Carlo Poma hospital would not comment.