London Welsh have been granted a temporary licence to play their next two Championship games, but have been deducted 20 league points.
The Exiles announced on 7 December they would be going into voluntary liquidation and are now trading temporarily as a new company.
Welsh host London Scottish on Christmas Eve and are confident they have enough players to fulfil the fixture.
They have lost half of their playing staff but 19 remain on the books.
Those senior players at the south-west London club are joined by seven others who have been signed on loan.
“It’s been a challenge. We have had to rebuild a squad in quick time,” head coach James Buckland told BBC Radio 5 live. “What we have lost in terms of players, we make up in character.
“Every player that goes on the pitch on Saturday will not be thinking about the situation the club is in. They will be thinking of the opposition, and how they are going to win.”
A 20-point deduction drops London Welsh from fifth in the Championship to the foot of the table, and in January the Rugby Football Union will rule on whether the club are able to play the rest of the season in the Championship.
Welsh believe they need to raise about £300,000 to make this possible, but are “completely positive” about remaining in the second tier.
“We’ll play these two games and then have a window in January which will give us time to formalise the license with the RFU,” chairman Gareth Hawkins said.
“It’s been difficult. I had to come in and tell players if they had opportunities a smart move would have been to go [to another club], and a number did go.
“But what is quite amazing is the number of players who stayed, and are committed to fighting to save London Welsh and taking it forward.”
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The squad now only train two days a week, with some players in effect becoming semi-professional.
“Guys are able to go out and do other things to supplement their income,” Buckland added.
“We are very fortunate being in London. A few guys are picking up work [in the city] and a couple of guys are personal trainers, or exploring work experience as a teacher.”
The club had to make every employee redundant following the liquidation, but have signed players on new deals until April.
“They have all signed contracts, so they all have assurances,” Hawkins said.
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