RALPH Hasenhuttl insisted he was looking to keep clinical frontman Timo Werner “unhappy” by shutting out the Chelsea star on Saturday.

The Saints boss is set for a reunion with the Germany international when he takes his squad to Stamford Bridge, looking to extend their two-game winning Premier League run.

Hasenhuttl helped Werner ignite his career during his time at Bundesliga outfit RB Leipzig – the striker netting an incredible 42 goals in 77 games under the Austrian boss.

Stuttgart-born Werner made a £45million move to join Frank Lampard’s Blues in the summer.

He has scored in Nations League fixtures against Spain and Switzerland for his country this season, while also striking in the Carabao Cup against Spurs.

But with Werner having yet to fire in the Premier League, Hasenhuttl is hoping to keep the striker quiet.

“Hopefully it stays the same after the game,” said the Saints manager.

“I know this player very well.

“I had two fantastic years with him. We brought him in from Stuttgart for small money if you want. Because we knew the game we played in Leipzig was perfect for him.

“We had a fantastic time in Leipzig. The first year was amazing. He scored massive goals, I think it was 24 in the first season in the Bundesliga.

“It was a fantastic year, we both enjoyed it a lot. I have worked with a lot of players in my entire managing career – he is definitely one of the quickest I’ve ever worked with.

“He is really hard to defend, he has a fantastic finish. In the second year it delivered more problems with some injuries.

“He is getting a more complete striker now, a better package. He learned a lot last season and is a fantastic signing for Chelsea.

“He’s only happy when he scores. Hopefully he’s unhappy after the game – we will do everything to keep him unhappy.”

Werner has helped the Blues to seven points from their opening four league fixtures.

Asked whether he would get the chance to speak with his former striker, Hasenhuttl said: “Hopefully yes – but I don’t want to congratulate him for a goal!

“He is getting more and more a complete striker and can score goals nobody else scores. When he gets a little space, I have always said he is really, really tough to defend.

“But we must do it together with a very good game plan and it will be a big challenge for our defence. He is definitely a fantastic striker and hopefully, we can keep a clean sheet for 90 minutes again if it’s possible.”