José Mourinho's Chelsea side operate primarily in a variation of the 4-2-3-1 formation.
In said formation there are three berths available for attacking midfielders and with Eden Hazard's role on the left flank all but guaranteed, there is an ongoing battle for the remaining two spots.
Competition for places
The principal battle is being fought between Willian, Andre Schurrle and Oscar, with the likes of Mohamed Salah and Ramires also vying for a place. The three primary contenders have heaped pressure on Mourinho as he selects his side.
World Cup winner Schurrle, 23, has made appearances in all but one of Chelsea's league fixtures so far this term, scoring two goals in the process. Having spent 304 minutes on the field, the German has so far failed to provide any goals for his teammates and additionally has created just two chances.
Schurrle also made six appearances at the World Cup, scoring three and assisting three, as he served as Germany's impact substitute. With nine strikes in 43 appearances last term, the German has adopted a knack of scoring in big games, striking twice against Manchester City, as well as netting against the likes of Brazil and PSG since summer 2013.
Brazilian international Oscar, scorer of 11 and provider of 10 goals last season, has also featured heavily during the opening stages of the new campaign, making five appearances and spending in excess of 400 minutes in the fray thus far in the league.
Scoring on one occasion and assisting on another, Oscar operates as a number 10, but has the ability to drift onto the right flank. The Brazilian playmaker also tracks back to help out in defence, making 10 tackles up to this point in the league campaign.
Oscar's Brazilian compatriot Willian produced seven goals and scored a further four in 42 appearances in all competitions last campaign. Impressing many with his athleticism and ability to work in tight pockets of space, the Brazilian made 18 Premier League starts during a solid debut season in England.
Similarly to Oscar, Willian has struck once and assisted once this term, appearing in six fixtures and spending 267 minutes on the field of play.
The big call
With three top-quality players in contention for the two available positions in Mourinho's Chelsea, the Portuguese has a major decision on his hands. Oscar, Willian and Schurrle all possess abilities that would be welcomed by any top European side.
Outstanding work ethic, tenacious defending and incredible natural talent, the three international superstars have thrust Mourinho into having to make a major decision - and soon.
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