LONDON Welsh's plan to ground-share at the Kassam Stadium looks in doubt after an independent audit found the club did not meet the minimum standards for Premiership rugby.

The news is a huge blow to the Exiles, just hours before the first leg of their Championship play-off against Cornish Pirates this evening.

The Rugby Football Union's board agreed and ratified the findings of the audit, which means if London Welsh win the play-off they could not be promoted.

The statement read: "The independent auditors identified various failures, including not having Primacy of Tenure at their nominated ground.

"This states that a club must demonstrate that they can host home fixtures at the time stipulated by Premiership Rugby and/or the host broadcaster."

London Welsh's chairman Bleddyn Phillips told the Oxford Mail last week: "There are a few things (in the audit) as you would expect, but let's just say the matters identified were ones I think we could address without much difficulty."

The club have 14 days to appeal the RFU's decision.