Jack Willis urged RFU bosses to reconsider their overseas rule as he prepared to go from Wasps redundancy to Champions Cup semi-final.
Six months after being one of 167 made jobless by the financial collapse of his lifelong club, Willis plays for Toulouse at Leinster on Saturday.
The Dublin clash comes a fortnight after the flanker turned a short-term move into a three-year deal with the five-time European champions.