The Sharks have confirmed that hooker Craig Burden will travel to Toulon to discuss a probable move to the European champions.
Toulon have long been hunting a top-class hooker since current Sharks CEO John Smit's move from Saracens fell threw and Burden looks set to be the latest South African to sign up.
28-year-old has struggled to make the Sharks starting VX this season with Kyle Cooper the first choice while Springbok hooker Bismarck du Plessis was absent due to injury.
Smit said the Sharks wouldn't stand in Burden's way should he secure a contract in France.
"Burden is heading to Toulon for a week. This could be a great opportunity for him so we are going to let him go and have a look before a decision is made," Smit told Times Live.
"He has massive potential, but as I am sure you would understand there is a fair amount of competition for him here after he spent last season not playing much rugby due to injury."
Burden could join fellow South Africans Bryan Habana, Joe van Niekerk, Bakkies Botha, Michael Claassens, Danie Rossouw and Juan Smith if he completes the move to Toulon, are currently second in the Top 14 standings.
Former Springbok flank Schalk Burger is also rumoured to be talking to the side coached by former France boss Bernarde Laporte.