As so many tournaments do, they allow the players to perform in a shop window to the world.

Suddenly players that you never knew existed explode onto the scene or players that didn't appear that good the last time you saw them, now look better or in some cases the perennial footballing heroes just keep on gathering worshippers to build upon the hero status they so enjoy.

For most Premier League clubs, the vast majority of actual, true footballing talent will be many millions of pounds out of their reach, even with the new TV deal.

When clubs like Chelsea go looking for new recruits, you know it will be expensive, but the finest quality Abramovich can buy.

With Antonio Conte coming to a football stadium near you soon, he will want to build a team in the Italian style that can defend, create and work together to score goals and bring about success.

Chelsea's defence of their title fell flat last year, but with Conte, it will be a whole different ball game and the players will dare not fail.

So which rare jewels will Conte bring to London, polish up and display? Here are five possibilities...

Marek Hamsik

Europe has finally woken up to the talents of Slovakian Hamsik.

Serie A side Napoli are now expecting summer interest in the 28-year-old, who has been an integral member of their first team since 2007.

Since then he has made 319 Serie A appearances, scoring 81 goals and was one third of their famous three-pronged attack which also included Ezequiel Lavezzi and Edinson Cavani.

Leonardo Bonucci

The Juventus defender is currently working under incoming Blues boss Antonio Conte with Italy at Euro 2016.

The 29-year-old has been one of Italy’s star performers so far at Euro 2016 and Conte is desperate to bring him with him to Stamford Bridge.

Chelsea are now expected to launch a £32million bid in an attempt to convince the Serie A champions to sell one of their defensive stars.

Alvaro Morata

Abramovich attended Spain’s Euro 2016 clash in Bordeaux on Tuesday evening to watch Chelsea target Morata.

The striker scored to take his tally to three at the finals, making him the joint-leading scorer with Gareth Bale.

Chelsea had already opened talks to sign Morata with Real Madrid having exercised the £23.6million buy-out in the 23-year-old’s contract, having sold him to Juventus two years ago for £16million.

The buy-out is understood to be in anticipation of selling Morata this summer for a substantial profit – a fee of £40million has been mooted, with Chelsea targeting him and Everton’s Romelu Lukaku.

Morata would appear the more likely signing as things stand with the player having scored 27 goals in two seasons in Italy.

Jerome Boateng

Comfortably the best defender in the entire Euro championships this summer, Boateng is absolutely superb and rock solid for Germany and club side Bayern.

Incredibly comfortable in possession, capable of exchanging passes between lines of midfielders to turn defence into attack in an instant, his reading of the game has also saved Germany on a couple of occasions.

He is the consummate defender and has announced his arrival as top class since leaving Manchester City in 2011.

Bayern will want to keep him, but money talks.

Jordi Alba

Spain's surging left winger, who appears at left-back on the team sheet, is one of their most dangerous secret weapons.

Opposition defences think the strikers are their biggest worry and don't pick up on Alba's well-timed runs down the flank and into the box.

One of the tournaments unsung, but star players so far. The Barcelona star was thought to be on the radar for Juventus before the finals and so a move isn't entirely out of the question.

It is said that his five year deal, signed in 2015 has a release clause of €150m! Ouch....