http://www.bbc.co.uk/sport/football/42783527Ex-England player Joey Barton claims "50%" of professional footballers bet on matches, and says gambling is "culturally engrained" in the sport.
The former Burnley midfielder, 35, was banned by the Football Association in April 2017 for breaching betting rules.
He was found to have placed 1,260 bets on football matches over 10 years.
"I think if they found out everyone who has been betting and cracked down on it, you'd have half the league out," he told BBC Radio 4's Today programme.
"I think 50% of the playing staff would be taken out because it's culturally engrained."
Barton - who also played for Manchester City, QPR, Newcastle, Marseille and Rangers - was fined £30,000 and initially banned for 18 months.
That suspension was later reduced by almost five months after he appealed against its length. He can return to football on 1 June 2018.
Barton, who said he was addicted to gambling, says he placed 15,000 sports bets in 12 years, and admits his addiction is a "constant battle".
Players in England's top eight tiers are banned from betting on football.
