Australian cyclist Luke Plapp's Olympics are most likely over after he needed abdominal surgery following a heavy fall in the road time trial.
While nothing officially had been said on Sunday morning in Paris, team officials were looking at options for a replacement rider.
Plapp was also picked to ride alongside Michael Matthews and Simon Clarke on August 3 in the men's road race.
The 23-year-old was among several riders to fall on Saturday in the men's and women's time trials, which were run in treacherous conditions on a central Paris circuit.
Plapp was rushed to hospital for scans on Saturday (local time) after he fell in the rain and slid under a barrier fence after passing the first checkpoint approximately 14km into the 32.4km race.
He had set the fourth-fastest time up until that point.
The 23-year-old was conscious and was helped to his feet but appeared in obvious distress.
The Australan Olympic Committee (AOC) said he was in a "stable condition" in hospital as he awaited scans, accompanied by his parents and a team doctor, and later updated that he had undergone surgery.
"Further medical details are not available at this time," an AOC spokesperson said.
Earlier, compatriot Grace Brown won Australia's first gold medal at the Paris Games in the women's race, with many riders in the event also falling in the slippery conditions.
