Chelsea are set to miss out on signing a young Watford defender to Manchester United in the coming weeks. Chelsea are in the race to sign a 16-year old left-back from Watford’s academy, but it looks like the defender has chosen to sign for Manchester United instead of the Blue’s. It has been a staple of Todd Boehly’s reign that the club would look to sign young players from around the world, but as the old saying goes you cannot sign everyone you want. Manchester United look to have won the race to sign the 16-year old defender. According to…