Southampton manager Ralph Hasenhuttl apologised for encroaching onto the Stamford Bridge pitch to celebrate Michael Obafemi's goal, but said he was overcome with emotion with the "fantastic" strike.
Goals in either half from the Republic of Ireland international and Nathan Redmond saw the improving Saints defeat Chelsea 2-0 to pick up a fourth win in six league outings. Chelsea meanwhile remain in fourth position despite to a sixth loss in 15 Stamford Bridge matches in all competitions this term.
Obafemi’s 31st minute strike was his first league goal of the season, with the teenager displaying wonderful control and composure with a smart finish past a helpless Kepa Arrizabalaga.
The charismatic Austrian manager leapt onto the pitch when the Irish striker put Saints into the lead and while he was sorry for leaving his technical area he made no apology for his passion.
When told he had danced his way onto the pitch to toast Obafemi's goal, Hasenhuttl replied: "Did I? Sorry for that; sorry for leaving the coaching zone.
"But I was so happy, it was a fantastic goal for Michael. Not only the goal, but he was there to help the team. That's the best Michael we can imagine.
"I think for us all it was a fantastic day, because we have to play again in two days.
"So if you go out here and take three points it gives you a mental lift. Now the players will not be that tired. We've bounced back to our philosophy, in how to be brave and how to defend as a team.
"It's about showing more responsibility for each player; being much more committed and much more aggressive."