Peter serves as managing partner of Winston & Strawn LLP’s London and Brussels offices and is a member of the firm's Executive Committee. Widely recognized as a leading competition and trade lawyer, a significant part of his practice involves working within the firm’s global sports law practice, advising on complaints and investigations relating to athlete welfare, performance development, funding, selection, classification, doping, and athlete agreements.

Peter is currently advising a number of athletes, as well as the BAC in relation to high-profile complaints and investigations relating to athlete welfare, performance development, funding, selection, classification, doping, and athlete agreements. He also advises other sporting bodies in connection with EU competition law aspects

Peter has been recognized in both The Legal 500 and Chambers since 2006, and “is acknowledged for his impressive experience in both disputed and non-contentious matters”.