Willian
Willian has earned 30 senior caps for Brazil to date and could play a key role in a vital summer for Dunga's sideAFP

Chelsea midfielder Willian is eager to avoid being caught up in a club versus country dispute as he prepares to embark upon a potentially hectic summer of international duty. The 27-year-old hopes to represent his country during both June's Centennial Copa America in the US and the subsequent Olympic football tournament to be held across his homeland between 3-20 August, although it remains to be seen if an agreement can be reached.

Barcelona have already confirmed a consensus with Brazilian Football Confederation (CBF) president Marco Polo Del Nero over Neymar, who will miss the Copa America but is set to feature at the Olympics. Willian could join him as one of three overage players permitted in Dunga's U-23 squad, although such an absence would rule him out of at least the first two matches of Antonio Conte's Stamford Bridge reign.

He would also miss all of the Italian's first pre-season in charge following the conclusion of Euro 2016 and would not be able to take a proper break before being thrust back into domestic action. The 2016-17 Premier League campaign is scheduled to start on Saturday 13 August.

"Everyone knows my desire to play both championships, but of course we do not want to fight and put Chelsea in a difficult situation," Willian, whose impressive displays have been a rare highlight during an otherwise desperately disappointing year for Chelsea, told ESPN Brazil. "And I do not want to fight with the Brazil Football Confederation. I hope they and Chelsea enter into an agreement about my release."

Chelsea would be under no legal obligation to release Willian for the Olympics, although they must do so for the Copa, which will pit eight-time winners Brazil, knocked out on penalties by Paraguay during last year's quarter-finals in Chile, against Ecuador, Haiti and Peru in Group B.

At the Olympics, the Selecao have been placed in Group A alongside Denmark, Iraq and South Africa. They play their first match against the latter at the Mane Garrincha Stadium in Brasilia on 4 August.