Lyon sign Argentine Isa as medical cover

The 23-year-old, who has already played 25 times for the Pumas, is due to join Toulon next season.

In announcing the signing, Lyon said in a statement that Isa was "known for his power, his adaptability and most of all for his handling skills".

Last year, he played for the Argentina Jaguares in their inaugural Super Rugby season.

Isa, who played in the 2015 World Cup, was previously on Toulon's books for the 2013/14 season.

However, the Argentine Federation only selects home-based players, meaning Isa may no longer be available for his country.

Agence France-Presse