Anthony Barry has linked up with Thomas Tuchel once again by taking over as Bayern Munich assistant coach.

Barry worked under Tuchel at Chelsea and the Englishman has joined his coaching staff at Bundesliga leaders Bayern.

The 36-year-old will work alongside Zsolt Low and Arno Michels, who were also part of Tuchel's team during his tenure at Stamford Bridge.

Barry has taken on another new challenge just a couple of months after he was named as Portugal assistant head coach.

He had been working under Roberto Martinez with the Belgium national team before the Spaniard's reign came to an end and he was appointed as Portugal boss.

Bayern sporting director Hasan Salihamidzic said: "I'm pleased we've managed to recruit Anthony Barry. Anthony completes our coaching staff and is an ideal fit for FC Bayern with his passion and his quality."

The Bavarian giants were knocked out of the Champions League by Manchester City on Wednesday, but are two points clear of Borussia Dortmund at the top of the Bundesliga ahead of a trip to Mainz on Sunday.

Thomas Tuchel slammed speculation about the Bayern Munich future of Oliver Kahn and Hasan Salihamidzic by stating the off-field leaders "shaped the club".

This has been a tough week for Bayern, with Champions League elimination coming at the quarter-final stage for a third successive season after a 1-1 draw with Manchester City meant a 4-1 aggregate defeat.

Tuchel allowed himself a joke in Friday's pre-match conference, ahead of the clash with Mainz, when he reacted to the arrival of set-piece mastermind Anthony Barry from Chelsea by saying: "Finally there is a good coach."

Most focus has fallen on the possibility of departures, however, with reports casting some doubt on whether Bayern will continue to back CEO Kahn and sporting director Salihamidzic.

"I read absolutely nothing," said head coach Tuchel. "I come here in the morning and I feel a good energy here. I try to influence what I can influence.

"I don't want to comment on the rumours. My cooperation with the club management is goal- and solution-oriented. Oliver Kahn and Hasan Salihamidzic shaped the club."

He added: "I don't rule out that some unrest affects the players. But it will never be completely calm. We focus on the things that we can influence ourselves. I don't know any other way."

Tuchel's team must reset and train their focus on the Bundesliga, their last remaining trophy target. Bayern head into this weekend's games with a two-point lead over second-placed Borussia Dortmund after both drew their last league matches.

According to Tuchel, Bayern are not themselves at the moment. "I rather sense an insecurity, an unrest that paralyses us a bit," he said.

He said the team should look to "turn dissatisfaction into energy", and Tuchel, appointed on March 25, has seen plenty of cause for dissatisfaction.

Bayern exited the DFB-Pokal to Freiburg under his watch in early April and have not gone beyond the quarter-finals of that competition in the last three seasons.

But Tuchel said: "This is not a crisis. We must not question everything. There is always a sense of reality involved. Many big clubs didn't make it to the [Champions League] quarter-finals. But we remain ambitious and we always want more. We're still first in the Bundesliga."

The arrival of coach Barry is a timely boost, with a deal agreed to take him from Chelsea, where he and Tuchel previously collaborated.

"He just arrived," Tuchel said. "Finally there is a good coach. I am very happy. We really wanted to have him with us. The whole package is right for him: his personality, the love of the game, the love of his job, his passion and his quality. He brings a lot of energy. His work with set-pieces at Chelsea was on a whole new level for me."

Roberto Martinez has told Thomas Tuchel that Anthony Barry will remain part of Portugal's coaching staff even if he swaps Chelsea for Bayern Munich. 

Tuchel revealed at Saturday's unveiling as Bayern's new head coach that he is hoping to add Barry, who he worked with at Chelsea, as one of his assistants.

Highly regarded Barry has also spent the past year working alongside Martinez at international level, first with the Belgium national side and now Portugal.

And regardless of whether the 36-year-old stays at Stamford Bridge or joins Tuchel in Germany, Martinez expects him to remain as part of his own coaching set-up.

"I've been with Anthony for many years. What happens in international football has nothing to do with club football," Martinez said. "If there's a change, it'll be from club to club."

Martinez's tenure as Portugal boss got off to a positive start with a 4-0 win over Liechtenstein in Thursday's opening Euro 2024 qualifying fixture.

Portugal fielded a strong line-up for that game that included Cristiano Ronaldo, who scored twice on the day he became the most-capped player in men's international football.

Bernardo Silva was also on the scoresheet, but he has warned his team-mates not to take next Group J opponents Luxembourg lightly, even if they are ranked 92nd in the world.

"The truth is we don't know what to expect because teams can change depending on what they see in the games we've been playing and they can adapt to our game," Silva said. 

"We expect a difficult game. The last time we came here we went through a lot of difficulties. The team has improved a lot. If I'm not mistaken, they haven't lost in seven games. 

"We know that the game can be difficult at times. We have to fight against that, dominate the game and create opportunities to score goals and win."

Martinez is still getting to grips with his squad, having only replaced Fernando Santos two months ago, and he suggested changes will be made against Luxembourg.

"It's very important to have fresh people," he said at his pre-match press conference. "Three days after the game with Liechtenstein, it's important that everyone is physically well. 

"We've been together for three days. I've been delighted with the level of unity, ambition and commitment I've seen. The quality of the squad is exceptional. 

"We're just at the beginning of the journey; we have to grow together. But it's always easier when you win. Our last win was important from that point of view."