Joshua has not fought since he suffered a second consecutive defeat to Oleksandr Usyk in August.
The alleged breaches relate to the league’s club finance regulations.
Qatar have turned to former Real Madrid coach Carlos Queiroz after Felix Sanchez left his role at the end of his contract.
Chelsea have hired the mental skills coach behind the All Blacks' rugby union team's "no-d---heads" policy to help create the one thing Todd Boehly's money can't buy: a winning culture.