Dr Richard McLaren says there has been no regular contact with Fifa over doping report

Dr Richard McLaren's report named 33 footballers as being involved in a Russian state-sponsored doping programme

Dr Richard McLaren has questioned Fifa's claim of working with him regularly during its investigation into alleged doping in Russian football.

In a report detailing a Russian state-sponsored doping programme, McLaren listed 33 footballers as being part of the more than 1,000 athletes involved.

It prompted football's world governing body to launch an inquiry.

Fifa said it was in touch with McLaren at "several stages", but he said there was "definitely not regular contact".

McLaren told BBC Sport: "I don't know if they have been using my information to sort it out, they haven't indicated that to me.

"They have had a contact with me, but that's some time ago and not directly in connection with this."

McLaren, a Canadian law professor and sports lawyer, was commissioned by the World Anti-Doping Agency (Wada) to look into allegations of Russian state-sponsored doping and subsequently produced his damning report in 2016.

"In this process, Fifa works in close collaboration with Wada and has been in contact with Professor McLaren exploring every possible avenue," a Fifa spokesperson told BBC Sport last week.

Fifa added that two under-20 female players had already been sanctioned by the Russian authorities and "investigations remain open".

Russia will host next summer's World Cup and earlier this year staged the Confederations Cup in preparation for the tournament.

Every participating player at the Confederations Cup had blood and urine tests for doping and all came back negative.

Russian players also returned negative tests at the 2014 World Cup in Brazil.