Blackburn striker DJ Campbell is one of six men in police custody following new match-fixing allegations in football.
  Rovers have confirmed that the 32-year-old has been arrested as the National Crime Agency investigate fresh spot-fixing claims following an undercover newspaper sting.
  The NCA is examining evidence provided by the Sun on Sunday, who filmed former Nigeria and Portsmouth defender Sam Sodje claiming he received £70,000 for getting himself sent off in a Championship fixture last season.
Sodje was shown a red card after repeatedly punched Oldham's Jose Baxter in the groin, and he admitted receiving a substantial reward to the undercover reporter.
  He also told the reporter that he knew current players who would be willing to get booked in return for cash rewards, and hinted he could rig matches at next summer's World Cup finals.
Campbell, who joined Rovers on a free transfer in the summer, incurred a yellow card in the Championship fixture clash against Ipswich last week - an incident which is believed to be at the centre of police enquiries.
  A Blackburn statement read: "Following reports in the national media, Blackburn Rovers can confirm that striker DJ Campbell has been arrested.
"The club will be making no further comment on what is now an ongoing legal
matter."
  Sodje who was released by Pompey at the end of the season and remains a free agent, is also believed to be in police custody along with Oldham midfielder Christiano Montano.
The Colombian winger was filmed claiming he agreed to get himself booked in return for cash, although he failed to incur a yellow card in the fixture against Wolves in October.
Betting expert Scott Ferguson told Sky Sports News that players at the lower end of the professional game are easy prey for corrupt bookmakers.
"You have players lower down the league who may be one bad tackle away from the end of their career," he said. "They've been with various clubs for years and their still struggling to make it pay.
"It wouldn't take much searching to find people who might not have such a strong ethical background as they once did."
  Portsmouth have said they are "shocked and saddened" by the allegations, while Oldham have also vowed to co-operate fully with the police.
Pompey spokesman Colin Farmery said: "If these serious allegations are true then we are extremely shocked and saddened by them, as match-fixing of any type goes to the heart of the integrity of the game.
"The player in question no longer plays for the club and we have not been contacted by the authorities, but of course we would co-operate fully with any inquiry."
Oldham said in a statement: "Oldham Athletic Football Club has been made aware of the incident and allegation surrounding one of its players, Cristian Montano. The club will commence an immediate internal investigation to establish all the relevant facts of the case.
"The club is co-operating with other agencies in this matter and cannot comment on specific facts at this stage."
  The NCA is already carrying out a separate investigation into an alleged international illegal betting syndicate.
  Non-league Michael Boateng and Hakeem Adelakun, both 22, were charged this week with conspiracy to defraud contrary to common law.
The pair, who played for Conference South club Whitehawk FC in Brighton, were sacked by their club and will appear in court on Wednesday.
Two other men, Chann Sankaran, 33, from Hastings, East Sussex, and Krishna Sanjey Ganeshan, 43, from Singapore, were charged last month with plotting to defraud bookmakers and will also appear in court this week.