A recent medical check with his sports doctor Johannes Peil showed Michael Schumacher to be in a high state of health, the German's manager Willi Weber has revealed.
Intense rumours suggest the seven time world champion is on the cusp of announcing his return to the grid next year with Mercedes GP.
But it is also rumoured that the German, to turn 41 in less than two weeks, will conduct some sort of track test prior to making his final decision.
The Cologne newspaper Express said the outcome of Schumacher's recent checks with Dr Peil was "positive".
"Michael is super-fit. Dr Peil said he has made giant progress," said manager Willi Weber, referring to earlier this year when Schumacher had to call off his return to replace the injured Felipe Massa due to neck pain.
Weber revealed that Schumacher is currently skiing with his family in the French alps.