Hadden is hoping to include the record Scotland cap holder in his squad for the RBS 6 Nations, which starts in February against France.
Now, after playing with the Bone Steelers team against the Tremblers and St George - the England back-up squad - Townsend could make his full return in the European tie with Brive next Sunday.
He said: "It was tiring and hot out there but I enjoyed it and the team played some good rugby.
"I was pleased to get back on the pitch though after a frustrating spell."
Townsend added: "My ankle was sore when I went in for a tackle against St George but I think that is just because I have not taken contact for a while."