Bordeaux-Bègles fly-half Lionel Beauxis is set to miss several weeks through injury and possibly the start of the Top 14 season.
Beauxis left the team's training centre on Tuesday with his right arm in a sling.
Rugbyrama report that the former France number ten suffered an injury to the tendon in his right bicep while training against the youth team.
The club already have to do without prop Sébastian Taofifeuna who dislocated his shoulder and will be out for three months.
UBB open their campaign at home to Castres on the first day of the season on August 22.