What Coach Sarri has done is so wonderful in a year of many changes. The Champions League ticket with the Europa League championship is a beautiful greeting for a short but fun year of love.

But, who is behind Sarri, how high is Frank Lampard going to deal with the penalties that are heavy on Stamford Bridge? Among them, the two-term transfer ban is "fatal blow".

Photo: Getty.

Being banned from buying players is one thing, on the other hand Chelsea have to cope with the "mature player" rule that UEFA offers to Champions League clubs.

Under UEFA rules, in the Champions League team every club must have 25 players. Among them, there are at least 8 people who have grown up from the academy and at least 4 of them have to be "home" players, ie, train and develop at Chelsea from a young age to the present.

Of course, bringing the young players into the Champions League will be a gamble, but the more losers win. Because cases such as Ajax Armsterdam this season are very rare and decadent, Ajax also fell at the semi-finals, not collecting any achievements.

Securing 8 above is mandatory and each club usually only gets enough, not excess. That’s why Tottenham coach Pochettino once complained last season and he had to eliminate Juan Foyth in the group stage reluctantly.

From next season, each team’s bench in the Champions League will have 12 players. Thus, the choice for each match will be more rich with the coaches. But with Chelsea and the strict rules mentioned above, it is very difficult for them to find enough 12 people to sit on the bench.

This quality lineup has been a thing of the past. Photo: Getty.

Andreas Christensen and Ruben Loftus-Cheek are the "home-based" duo, although Loftus-Cheek is having a long time to heal. Similarly is the case of Tammy Abraham and Fikayo Tomori. So. Chelsea have had four players "at the club" since childhood.

Gary Cahill and Cesc Fabregas are the first team players. If they stay, Chelsea will have enough people and not have to insert "tomorrow" rates for enough roster. Unfortunately, this star duo left Stamford Bridge.

Victor Moses is a "mature from the club" who is in an 18-month loan contract with Fenerbahce. Thus, the most beneficial person at this time is Daniel Drinkwater. The former Leicester City midfielder is not used by Sarri much last season and now is the time he is used, whether he wants it or not.

With Eden Hazard saying goodbye, loan stars and looking for glory like Gonzalo Higuain and Mateo Kovacic could leave Chelsea without signing the contract. Thus, the Blues’ main line will significantly reduce power. In addition, Morata is also being borrowed by Atletico Madrid for 18 months.

Thankfully for Chelsea when they successfully bought Christian Pulisic from Dortmund. The American midfielder is only 20 years old but qualified for the Champions League because of his training and maturity outside the British territory.

Pulisic is the case "right person, right time". Photo: Getty.

Tiemoue Bakayoko, Kurt Zouma, Michy Batshuayi are the last noticed names. They are at the core of other clubs and are ready to return to London to help Chelsea.

Thus, any coach who now sits in a hot seat at Chelsea will have to face the challenge of distributing very headache. Chelsea still have a lot of people but how to allocate them to ensure quality and not break the law is very difficult.

Sometimes, it is more troublesome than negotiating to buy a class A star.