Racing 92's win over Toulon will not have made pleasant viewing for France coach Jacques Brunel as Teddy Thomas was injured.
Teddy Thomas came off injured for Racing 92 in their Top 14 win over Toulon just days ahead of France's Six Nations squad being announced.
Wing Thomas had been out for five weeks due to a thigh injury suffered during the November Internationals.
He made his return and dotted down in the 26th minute as Racing overcame Toulon 22-13, but had to leave the field four minutes later.
Thomas, who scored three tries in last year's Six Nations, was visibly upset upon returning to the changing room. France coach Jacques Brunel will name his squad for this year's tournament on Wednesday.
Meanwhile, Yoann Huget was the hero for Toulouse as they were made to work hard to beat struggling Agen 27-20 away from home and at least temporarily move to the top.
Having hammered Toulon 39-0 last time out, Toulouse will have been expected to make light work of the league's second-bottom club.