William Hill have reported early backing for Martin Jol from 11.0 to 2.75 favourite to succeed Sam Allardyce at Blackburn.
This follows Hill's hammering by punters who appeared to have got early knowledge of Allardyce's imminent departure.
"We saw a sustained gamble on Big Sam to depart from mid afternoon at which point he was a 33/1 (34.0) shot to be the next boss to go," said Hill's spokesman Graham Sharpe.
"We saw bets of up to £500 a time and the largest concentration of bets was placed by punters from and in and around the South West London area.
"Big Sam had been backed down to Evens to be the next manager to depart minutes before it was confirmed he had gone.
"It is too much of a coincidence for that to have been a genuinely inspired gamble - but that's the risk you take by pricing up markets of this nature and despite a hefty five figure thumping we're coming back for more by making Avram Grant odds-on favourite to be the NEXT to go."
Jol was linked with the previous vacancy at Newcastle United before the job went to Alan Pardew. The ex-Tottenham boss indicated in the summer that he was keen on a return to English football when Fulham expressed an interest in acquiring his services.
Latest Permanent Blackburn Boss Odds (William Hill)
Martin Jol 2.75
Dave Jones 6.50
Chris Hughton 7.0
Alan Curbishley 8.0
Diego Maradona 9.0
Martin O'Neill 11.0
Sven Goran Eriksson 11.0
Alan Shearer 13.0
Gordon Strachan 17.0
Steve McClaren 17.0
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