Lotus Renault says Kimi Raikkonen has a sore wrist after falling off a snowmobile during a race.
But following the competition in Austria, Raikkonen's Formula One team wrote on Twitter that "there's nothing to worry about ... he's absolutely fine."
Lotus says the 32-year-old Finnish driver "only has a sore wrist. He might have it checked again on Monday, but that's all."
The 2007 world champion, who quit in 2009 and switched to rallying, signed a two-year contract last month to return to F1.
Raikkonen won 18 races, finished on the podium 62 times and took pole position 16 times in F1.