Worcester scrum-half Shaun Perry is set for a shock return against Wasps after it was revealed that his knee injury is not as bad as first feared.
The 33-year-old was thought to have suffered cruciate knee ligament damage in last month's win over Northampton and was expected to miss six months.
But head coach Richard Hill said Perry was poised to start on Friday.
"He obviously gave his knee ligaments a right stretch but appears to be fine," Hill told BBC Hereford and Worcester.
Hill said former England international half-back Perry had come through a two-week series of intensive fitness tests to declare himself available for selection.
"We've given him two weeks of twisting and turning, jumping off boxes and doing everything to check the knee is ok," said Hill.
"We would never risk anybody if we thought there was a chance of causing a serious problem.
"But he has said: 'I am alright so put me in there', so there is no reason not to pick him.
"We haven't announced the team as yet but in all likelihood we will be starting him on Friday night."
Hill said Perry's recovery had come as a major boost as his natural replacement at number nine, Jonny Arr, has also been out injured.
The pair's absence led to Ollie Frost stepping up to the starting line-up and, while admitting Frost had taken his chance well, Hill feels Perry's experience could be key in the Premiership.
"We have kept it quiet because we didn't believe him, although the medical experts said there would be no operation required," added Hill.
"But we put him through two weeks of hell to make sure that knee was perfectly stable.
"He has come through 100% and has trained with us for the first time this week so there is absolutely no reason for him not to play.
"Ollie Frost has done a brilliant job for the team and has played with a lot of confidence. It was a massive step for him to come in.
"It's been a massive development curve for him and he's come through really well. We'll put him on the bench and we'll have no problem if he has to come on and play."