Redruth are sweating on the fitness of influential prop Darren Jacques ahead of Saturday's Cornish derby with Launceston at Polson Bridge.
Jacques, 31, has been an ever-present in the Redruth side this season but was forced off after just eight minutes in their win over Worthing last week.
"He's very doubtful," said Redruth director of rugby Dave Penberthy
"He's been outstanding this season. He's probably one of the best scrummagers in the league."
Penberthy says that if Jacques is fit, he will play, but told BBC Radio Cornwall that he will not take a risk on him if he is not completely healthy.
"He's been a great servant to the club and it's a game he's desperate to play in, but we've got to be sensible as well and we don't want to make the injury worse," Penberthy added.
"We've been so fortunate to have some great front-row forwards to call on, but Jacquesey is very good in the loose as well and it will take a bad injury to keep him out."
Penberthy has been boosted by news that his son and fly-half Aaron, who in on a dual-registration deal from the Cornish Pirates, will be available to play.
Redruth's director of rugby had been worried that the Pirates may recall Penberthy junior for their British and Irish Cup clash with Cross Keys on Sunday.