Leeds United have asked the Football Association and English Football League to conduct their hearing into Spygate as soon as possible, amid concerns it may impact on their promotion hopes.

Both authorities are investigating the Championship leaders after a member of staff - understood to have been an intern from manager Marcelo Bielsa's Argentina homeland - was rumbled at Derby County's training ground last week.

In an extraordinary press conference called against advice from others at the club, Bielsa admitted that he had sent a worker to watch every team they have faced this season in training.

Marcelo Bielsa's Leeds are hoping for a swift conclusion to the FA and EFL's Spygate inquiry

Subsequently, it emerged 11 Championship clubs had written to the EFL to demand a thorough probe.

Sources close to the investigation say that all options are open and that there is no timescale for its completion.

However, Elland Road officials are desperate for a quick conclusion. Leeds have already told the authorities that they will be open and transparent and will fully assist their investigation.

Bielsa's side lost 2-1 at Stoke City this weekend - their third defeat in four league matches - and the club do not want Spygate to become a sideshow which could hamper their hopes of returning to a Premier League they have not competed in since 2004.

Joe Allen scored Stoke City's second in the 2-1 win over Leeds United at the bet365 stadium

There is a strong desire for the case to be concluded in days, rather than weeks. Bielsa has not broken any rules, but the EFL and FA are looking into whether the behaviour constitutes improper conduct.

Most of the signatories on the letter, which is understood to have been led by second-placed Norwich City, are promotion rivals. Steve Lansdown, chairman of seventh-placed Bristol City, has already called for a points deduction to be considered.

Should Leeds be charged, an appeal would see the matter go before an independent panel.

Meanwhile, the West Yorkshire club are hoping to make two signings this week to bolster their squad. One player is expected to join on loan while another, a young English talent identified by Bielsa, is set to make a permanent switch.

Following Stoke's victory Sam Clucas, who scored the home side's first goal, laughed off the Spygate revelations.

'We had a good look (for spies) on Friday,' the 28-year-old joked. I think the security were having a good walk around as well but we didn't see anyone. It's all good. I don't think it mattered. We saw it in the papers and had a little laugh.'

Stoke's Sam Clucas, who scored the first against Leeds, played in Spain for 18 months and says Bielsa's tactics are commonplace

Clucas, a £6million summer signing from Swansea City, was a scholar at Glenn Hoddle's summer academy as a youngster and represented Jerez Industrial before returning to England.

'I played in Spain for a year-and-a-half and it does happen there,' he added. 'You have open training sessions the day before games and people can just walk in. It's just normal over there and he (Bielsa) has brought it over here. If it helps you win games and get that extra bit of info it's one of those things.'

Clucas had broken the deadlock after the interval in a feisty affair, in which Leeds defender Pontus Jansson was unlucky to see red before Joe Allen wrapped things up late on.

Ezgjan Alioski pulled one back for the visitors with the last kick of the game as new Potters boss Nathan Jones registered his first win at the helm in his third match at a raucous bet365.