The reaction from the Manchester City players said it all when Ilkay Gundogan found the top corner after 13 seconds against Manchester United - pure disbelief.
City fans will have few better goal celebrations than the opener at Wembley, and they almost made as much noise when they saw a replay on the big screens a moment later.
Even Pep Guardiola, who plans everything to the minute detail, couldn't have imagined a start like it. After being pegged back before half-time by United, City came out flying after the break, and Gundogan again found the back of the net with another first-time volley from 20 yards.
As he wheeled away to a second jubilant City celebration, it felt like it would be a perfect parting memory. ALSO READ: Man City player ratings vs Manchester United After all, this could have been Gundogan's final domestic appearance for City.