Adolfo Daniel Vallejo suggested his French Open match should not have been umpired by a woman Inside Sport newsletter: Get an expert guide to the biggest moments shaping the world of sport Get our free Inside Sport newsletter Get our free Inside Sport newsletter Email * SIGN UP I would like to be emailed about offers, events and updates from The Independent. Read our Privacy notice Paraguayan tennis player Adolfo Daniel Vallejo is facing a "significant sanction" from French Open organisers