French Rugby trio Aurelien Rougerie, Julien Pierre and Benjamin Kayser were the subject of a machete attack by a gang of locals in the early hours of Sunday morning.
The three were taken to hospital following the incident, which took place in Millau in Southern France.
The Clermont Auvergne players have been staying in the region before a pre-season training camp and it is believed they were returning from a nightclub when the attack occurred.
Pierre - who was a part of the 2011 French side that lost the Rugby World Cup final along with Rougerie - suffered deep cuts to his hip, but a club statement said that none of the injuries were life threatening.
The other two also suffered injuries to their arm, but police have said no-one was detained at the scene.
A Clermont Auvergne club statement said: "A group of players were assaulted by a dozen people carrying weapons including machetes, knives, swords.
"We are deeply shocked and outraged by these acts and will bring all the necessary support to local authorities who have launched a probe."
Police have also said that the players were targeted for no reason and it is an incident that has provoked a strong response from the club and from the public.
29-year old Kayser has played 24 times for France, Pierre has 27 caps and club captain Rougerrie has appeared for Les Bleus on 77 occasions.