Hunton & Williams is opening a Boston office with a 14-attorney team that is splitting from  litigation boutique Manion Gaynor & Manning, the firms’ leaders announced Monday.

The team joining Hunton & Williams represents corporations in high-stakes litigation matters throughout the country, with clients such as American conglomerate Koch Industries and food services giant Sodexo. The group also represents ownership and management of some of Boston’s top professional sports teams, as well as athletes, agents and coaches.