The English Court of Appeal in Michael Wilson & Partners v. Sinclair [2017] EWCA Civ 3 has clarified that a subsequent litigation is not an abuse of process for being a collateral attack against a previous arbitral award, where the respondent to the litigation was not a party to the earlier arbitration. The case reiterates that non-parties to an arbitral award are not bound by it, but in so doing are exposed to the risk of being separately sued in court.