Guardiola was delighted with the goal and ran from his seat in the dugout to congratulate his assistant coaches Jack Wilson and Carles Vincens.
"Set-pieces are really important in modern football, we won in the FA Cup at Spurs with a corner and today the free-kick. It's Carles and Jack, I'm not involved in set-pieces, they are better and I don't have time," he said. "Kevin had to make the perfect pass and Julian had to make the movement and finish but someone had to say 'we're going to do this' so all credit to Carles and Jack."