Southampton ended Everton's unbeaten start to the season with a 2-0 victory at St. Mary's on Sunday.
Saints were excellent on a sunny day on the south coast and were rewarded after 26 minutes through James Ward-Prowse.
The skipper played a neat one-two with Danny Ings on the edge of the box before firing past Jordan Pickford.
Che Adams then scored shortly after to give Southampton a two goal advantage.
Lucas Digne was shown a straight red card after a nasty challenge on Kyle Walker-Peters with 18 minutes remaining.
Speaking after the game, Ralph Hasenhuttl said it was one of Southampton's best performances under his leadership.
He said: "One of our best performances so far against a strong side.
"Being one man more, I think it was good that we had good game management, good balance.
"It wasn't important to score again or create chances – it was more important to keep the ball and let the opponent run.
"I think we did that in a fantastic way. This was a step forward.
"In the last games we also showed in possession a good improvement – massive steps forward and this is necessary to become a better side."