Saracens and Bath are both under investigation for alleged salary cap breaches, according to a report in Saturday's Daily Mail.
Harlequins outscored Leinster two tries to none to win 24-18 in a hard-fought European Champions Cup clash at The Stoop.
Harlequins boss Conor O'Shea has said that Chris Robshaw, Joe Marler and Mike Brown 'would kill him' if he rested them for Leinster.
Sam Burgess made his Union debut but it was Bath's pack who stole the show as Harlequins were dispatched 25-6 at The Rec on Friday.
Sam Burgess has been named on Bath's replacements bench for Friday's clash with Harlequins at the Recreation Ground.
Harlequins boss Conor O'Shea has made one change to his starting side for Friday's encounter with Sale Sharks at the Stoop.
Harlequins boss Conor O'Shea is relishing the prospect of facing Leinster after his side claimed a 23-16 win over Wasps on Sunday.
Harlequins prop Will Collier believes his team is playing with more confidence as they look to overcome a sluggish start to the season....
Harlequins were made to work hard for a 25-9 victory over Castres Olympique at The Stoop in the first Champions Cup contest.
Harlequins and Castres will start off a new era in European rugby history when the two sides meet at The Stoop on Friday.
Leicester controlled the territory and weather better than Harlequins to end a three-match losing run with a 22-16 win at Welford Road....
Harlequins boss Conor O'Shea called on his team to pull their socks up after Sunday's heavy loss to Exeter in the Premiership.
Harlequins director Conor O'Shea has labelled speculation regarding England captain Chris Robshaw's Test future as "insulting."
Super Rugby winner Asaeli Tikoirotuma will make his Premiership debut for Harlequins in Saturday's clash with Wasps at the Stoop.
Premiership Rugby has confirmed salary cap changes and home-grown player incentives in the Aviva Premiership from 2015/16's season.
Harlequins winger Marland Yarde will know what to expect when he takes on Wasps flyer Christian Wade this weekend.
Harlequins were nilled at home in a thrashing by Saracens, their heaviest loss in over four years, as they lost 0-39 at The Stoop.