Leicester have agreed to sign France centre Maxime Mermoz from Toulon until the end of the season, subject to French Rugby Federation approval.
The 30-year-old, who had previously been linked with a move to Bath, has made 11 appearances in the Top 14 this season.
He will provide the Tigers cover for the loss of England centre Manu Tuilagi and Wallaby centre Matt Toomua.
The centre is rumoured to be making a permanent switch to Premiership rivals Newcastle Falcons at the end of the season.