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After Chen Zhun arrived in London, he was still thinking about Griezmann and Stones. He has already signed two football stars from his previous life this week. Coupled with the young talents in their own team, the future Southampton team can blow a youth storm in the Premier League, which is expected to be expected.

Chen Zhun led the team to Stamford Bridge for field training. Where they met a lot of London-based journalists, who all asked Chen Zhun a question about how confident he was in beating leaders Chelsea. Chen Zhun smiled and didn't answer, turned around and got on the team bus, leaving those reporters with a dashing back.

It wasn't meant to be a big game, but with Southampton's record of two wins and one draw in the first three rounds against Chelsea's three wins in a row, it turned into an interesting one. Both managers are new to the game this season, and the media is looking forward to what kind of sparks will emerge from the two managers.

The press conference for the match became a warm-up for the game. First of all, the head coach of the visiting team, Chen Zhun, took Pajas to attend the press conference.

The reporters' question session at the press conference was very lively, and the reporters' hands were kept raising.

"Hello, Southampton Manager David Winston. I'm a reporter for the Guardian. The question I ask is that Chelsea are the only team in the Premier League to have conceded a clean sheet at the moment, do you have a way to break down their impregnable defence? ”

Chen Zhun thought for a moment and said calmly: "I watched the first three games of the Chelsea team, and they played very well, but I also found their loopholes. I also worked out the relevant tactical deployment. As for the results, see you on the field. ”

"Hello, I'm a BBC Sport journalist, I have a question for Pajas, you scored your first Premier League goal in the first game of the season, how are you feeling, tomorrow against the best defence, are you confident of scoring again?"

Without thinking, Pajas said: "I was very emotional to score the first goal. But it's all thanks to the manager, who told me to play freely on the pitch and not to worry about any opinions. The manager's words left me uninhibited and it made me feel more confident on the pitch. The most important thing is for the team to win. ”

After asking a few more innocuous questions, the reporters said goodbye to Chen Zhun and Pajas before ushering in the biggest focus of the game, Chelsea manager Jose Mourinho. Mourinho and Chen Zhun met for the first time in the aisle, and both of them ignored each other and walked over to each other. Mourinho has always been at odds with the media, Mourinho hates the reports of the media, and the media hates Mourinho's arrogance and arrogance. Since coming to the Premier League, he, Ferguson, and Wenger have all fought in the air, looking like the new king of the Premier League.

Jose Mourinho said some of his own things as usual and did not take any questions from reporters. Walk away. The true colors of the madman are revealed. Left a bunch of habitual journalists.

It is worth noting that neither manager released his starting line-up ahead of schedule. The media have even more reason to believe that Chen Zhun and Mourinho have secret weapons.

August 28th. By noon, London's sports reporters had already known the starting line-ups for both sides in advance. When they looked at the starting line-up, they were shocked. Southampton manager David Winston lined up with a 352 formation. This was something that no one expected, and they didn't see any signs when they stepped on the field in Southampton, and London's sports journalists experienced the rookie coach's cunning for the first time.

Chen has been studying the game against Chelsea since the second round of the game against Blackburn, and he has been thinking about how to limit the link between Chelsea's central axis and the two strikers. Reid told him that the way was to mark the defense, and Chen Zhun denied this tactic, Chen Zhun knew in his heart the strength of the players in the Chelsea team, Joe Cole, Drogba, Gudjohnsen are all players with excellent individual strength. If a single practical man-to-man defence would only die worse, Chelsea's players would break it down one by one. Chen Zhun needs a holistic approach to defending Chelsea's offense as if it were hitting cotton.

When Chen Zhun thought of the overall defense, he finally thought of a defensive tactic, which has been notorious and criticized since its inception. That's the "chain defense". The last time Chen saw a chain defense in a game was when Italy played Spain at Euro 2016. In that game, Italy successfully defeated the once invincible Spanish team with its best chain defense, and avenged a lifetime.

Since then, Chen Zhun has begun to add chain defense training to his training. Chen Zhun handed over this training content to assistant coach Reid, and asked him to explain and instill the most professional chain defense tactics for the players. Reid also had an in-depth analysis of chain defence when he was technical director at the FA.

When Chen Zhun was playing FM Football Manager, he also studied chain defense, but it was only scratching the surface.

The chain defense originated in Switzerland and was pioneered by Austrian Karl Lapan. He pioneered the tactic of placing two centre-backs in front and back to strengthen the forward marking, which is known as the "Swiss deadbolt". In the 60s of the 20th century, AC Milan manager Nereo Rocco used this style of play, often winning 1-0 in the league, and also made the chain defense tactics famous. Nereo Rocco is also known as the father of the "chain defense". In the same era, the Argentine coach of the rival Inter Milan team, Elenio Herrera, also created Inter Milan's "chain defense", and Herrera relied on this set of tactics to make Inter Milan truly a world giant. The classic battle of the famous chain defense and tactician of the Milan period in the 80s, Sacchi, the classic battle of the World Cup final, made the Italian chain defense completely famous in world football.

Chain defense, as the name suggests, is a chain-like defense, with a chain for the midfield line and a chain for the back line, and the two chains are closely combined and the defense is tight. When the midfielder's chain is broken, the chain of the back line is replaced, and the out-of-position midfielder is added to the back line. The real essence of chain defense is that when the attacker breaks through one defender, the other defender immediately follows, giving you the illusion that it is always difficult to break through, so you have to pass back or split the side, and when the attacker splits the side, the defensive formation can return to the 541 formation of five defenders. This chain defense is to switch freely between the parallel midfield and the diamond midfield. Chain defence is the perfect combination of man-to-man defence and zone-to-man defence.

In fact, when it comes to chain defense, his opponent Mourinho is also an admirer of chain defense. The swing bus tactic was developed from the chain defense. He was at Chelsea, Real Madrid and Inter Milan and he took the best from the chain defense and transferred it to his own tactics. 2010 Champions League semi-finals match between Inter Milan and Barcelona. With the referee deceived by Sergio Busquets' fake fall and Motta sent off for a red card, Inter Milan had to abandon the attack and defend their victory with a chain defence. Finally eliminated Barcelona and advanced to the final. As a result, they defeated Bayern Munich in the final and won the Big Ears Cup.