Arsenal had the opportunity to sign Nemanja Vidic in 2005, a year before the now Premier League legend joined Manchester United, but the Gunners did not trust the judgement of the scout who recommended the Serbian defender to them.
Vidic joined Premier League rivals United in January 2006 and went on to win five Premier League titles and a Champions League. He formed one of English football's best defensive partnerships with Rio Ferdinand and become only United's second non-British or Irish captain.
Yet before making the switch from Spartak Moscow to Old Trafford for £7m, Vidic was recommended to Arsenal by Goran Milosavljevic, a former Chester midfielder who had become a scout, agent and adviser since hanging up his boots.