#6 Robert Lewandowski (Bayern Munich/Poland)

Arguably the hottest striker in world football at the moment, Robert Lewandowski has been Bayern Munich's mean goalscoring machine for a while now.
The prolific marksman plundered 34 goals in the Bundesliga last season as Bayern Munich overcame an indifferent start to the season to romp to their eighth consecutive title in the competition. Lewandowski was also lethal in the Champions League as his 15 goals helped the Bavarian giants to their second continental treble.
Lewandowski has already scored ten goals in just five Bundesliga games this season. He has also scored goals aplenty for Poland- 63 in 114 appearances to be exact - which makes him an absolutely indispensable player for both club and country.
#5 Sergio Ramos (Real Madrid/Spain)

Sergio Ramos has been a standout performer for club and country for a while now and is one of the world's premier goal-scoring defenders.
Widely considered as one of the best centre-backs in the game despite his chequered disciplinary record, Ramos also assumed penalty-taking responsibilities for Real Madrid since the departure of the club's record goalscorer Cristiano Ronaldo.
Last season, Ramos formed a formidable defensive partnership with Raphael Varane as Real Madrid won their first La Liga title in three years. Apart from his defensive responsibilities, Ramos also excelled up front, scoring 11 goals.
The two-time European Championship and FIFA World Cup winner has also excelled in Spain colours. With 175 appearances, the Spain captain is his country's most-capped player, and his 23 goals place him in a creditable seventh place in La Furia Roja's all-time goalscorers list.
Since missing his third and latest penalty for club and country, the Spanish player has not missed a spot-kick in 24 attempts. Simply put, he is more than an indispensable player for Spain and Real Madrid.
#4 Gianluigi Donnarumma (AC Milan/Italy)

Gianluigi Donnarumma may be only 21 years old but he already has five years of senior football experience under his belt.
The lanky shot-stopper is widely regarded as one of the best young goalkeepers in the game, with many likening his game with that of his namesake Gianluigi Buffon.
Donarumma, who has developed a particular reputation for saving penalties, has kept an impressive 77 clean sheets in 211 appearances in all competitions for AC Milan, a tally that includes 61 clean sheets in five Serie A seasons.
Even in Italy colours, the Rossoneri player has impressed, shutting out the opposition in nine of the 20 games he has appeared in, which makes him an integral player for both club and country.