Chelsea and Watford face questions over agent links

• Raiola among those who acted for club but had apparent player connection• ‘It is rare for any player not to have an agent advising’In the world’s richest football league the trading of players, compressed into two transfer windows, has become a billion-pound whirlwind, involving a flurry of agents whose roles and rewards have never been openly disclosed to supporters or the public. Earlier this year the Football Association injected a sudden gleam of daylight into t