A Portsmouth fan died after falling ill at the League One's club's preseason friendly against Bournemouth on Saturday.
Arsenal youngster Dan Crowley is set to leave the club to join Dutch side Willem II, sources close to the player have told ESPN FC.
Lord Herman Ouseley said an EFL pilot of the Rooney Rule had worked to an extent at academy level.
Mahoney, a 20-year-old former England youth international, has signed a four-year deal and will initially join the Cherries' development squad.
Ryan McLaughlin's tweet of himself holding a shirt at the Camp Nou was enough to fool some into believing Barcelona had signed the Oldham defender.
SGSA, which monitors safety conditions at Premier League and Football League grounds, has written to owners and managers at stadiums as a precaution.