Ogenyi ONAZI – Lazio/Nigeria/25/12/1992
Central midfielder who featured in all Nigeria’s games at Brazil 2014. Has excelled at Lazio since moving to Italy after playing in the Under-17 World Cup.
OSACR – Chelsea/Brazil/09/09/1991
Creative midfielder whose defensive qualities have made him a vital piece of the Mourinho jigsaw at Stamford Bridge. A key figure for Brazil.
Dani OSVALDO – Boca Juniors/Italy/12/01/1986
Despite a troubled past 18 months, the forward still has star appeal. His signing in January was a major coup for the Argentinian league.
Nicolas OTAMENDI – Valencia/Argentina/12/02/1988
Centre-back in fine form for Valencia this season after a spell on loan at Atletico Mineiro in Brazil.
Dennis PRAET – Anderlecht/Belgium/14/05/1994
After impressing on the left wing in the second-half of last season, and making an excellent contribution to yet another national title for his club, he has proved even more valuable this term as a number 10, becoming in the space of just a few months the Brussels side’s undisputed leader, the individual that his team-mates principally look to for their inspiration and strategy.
Romulo OTERO – Caracas/Venezuela/09/11/1992
Attacking midfielder with tricky dribbling skills who is also a free-kick specialist. A leading member of a promising new Venezuelan generation.
Alex OXLADE-CHAMBERLAIN – Arsenal/England/15/08/1993
He has overcome injury setbacks to make steady progress, moving from being a winger to a versatile attacking midfielder.
Mesut OZIL – Arsenal/Germany/15/10/1988
Criticised for below-par displays since a £42m move from Real Madrid, the number 10 still produces an impressive number of assists.
Leandro PAREDES – Roma/Argentina/29/06/1994
Former Boca Juniors starlet who moved to Italy last summer. The attacking midfielder has so far been used sparingly by Roma, but remains a huge talent.
Dani PAREJO – Valencia/Spain/16/04/1989
Former Real Madrid trainee who is now firmly established at Valencia and has been top scorer in their pursuit of a Champions League place.