Simon Grayson spoke of his delight at beating Manchester United as Leeds manager back in 2010.
Preston North End boss Simon Grayson has told Sky Sports that the finest moment of his managerial career was beating Manchester United as Leeds United boss back in 2010.
Grayson, 45, is currently trying to take Preston back to the Championship almost four years after their relegation, and with eight wins in the last nine games, the Lilywhites sit in the automatic promotion places in League One.
Grayson has a track record of success from League One, having taken three clubs up from that division already, with Blackpool, Leeds United and Huddersfield Town all enjoying promotion under Grayson's stewardship.
A boyhood Leeds supporter, Grayson not only played for the club but also managed them, and remains a popular figure at Elland Road - particularly because of one result over five years ago.
Grayson took Leeds United to their fierce rivals Manchester United in the FA Cup back in 2010 and, despite being two divisions behind the Red Devils, Leeds won 1-0 thanks to a goal from Jermaine Beckford - who is now at Preston alongside Grayson - and it remains one of the most famous afternoons in recent Leeds history.
Speaking to Sky Sports, Grayson admitted that in his 10-year managerial career so far, that win at Old Trafford over the legendary Sir Alex Ferguson remains the greatest 90 minutes as a manager he's experienced.
"Being a Leeds supporter, beating Manchester United in the FA Cup five years ago was a special day, especially when we were a League One team and they were flying at the top of the Premiership. To go there, in their own back yard, and beat them in front of 9,000 Leeds fans was a real special occasion," said Grayson.
Should Grayson manage to claim promotion with Preston this season, Leeds fans would surely be keen to give him a warm welcome back to Elland Road next term after he gave them an afternoon to remember at Old Trafford.