But with a crucial double header in Europe up next for Penney's troops the return of the scrum-half, who sustained the injury against Perpignan, could not be better timed.
And the head coach is hopeful that that his Lion will be available for the key clashes coming up.
"There is a chance for Conor, there always was. Hopefully, the work that the medical team has been doing comes to fruition," said Penney.
"You give them the time to do their work and hopefully they produce the athlete for you at the end of that process and we're nearing that so hopefully we'll have him back."