Arbitration analysis: This case involved a successful application by the second defendant to stay proceedings in the London Circuit Commercial Court. In the court claim, the claimant alleged that the second defendant had induced the first defendant to breach a contract between the claimant and the first defendant. The claimant argued that the contract entitled him to receive a commission in relation to the transfer of a player from the first defendant, Chelsea Football Club Ltd (Chelsea), to West Ham United Football Club (West Ham). In granting the application for a stay, the court was required to consider whether there was a valid arbitration agreement between the claimant and the second defendant, who were both 'Participants' under the Rules issued and promulgated by Football Association Ltd (the FA Rules). The FA Rules contained an arbitration agreement which clearly applied to disputes between Participants and the Football Association, however there was no express agreement between the claimant and the second defendant. Nonetheless, the judge found that there was an implied 'horizontal' agreement between the Participants. By separately acceding to the FA Rules, the claimant and the second defendant were each taken to have assumed a contractual obligation to one another. Written by Tatiana Minaeva, partner, and Ana Margetts, associate, at Reynolds Porter Chamberlain LLP.