Luis Suarez

Suarez's latest indiscretion at the World Cup earned him a four-month playing ban for biting Giorgio Chiellini, but that didn't dissuade Barca from spending a reported £75 million on the EPL Player of the Year last season. He won't be able to make his competitive debut until October, but could prove a decisive figure in the title race alongside Messi and Neymar.

Angel Di Maria

Desperate to halt the slide that saw them finish seventh in the Premier League last season, United signed Di Maria for a British-record fee of almost £60 million. The skilful Argentina winger made his debut in United's 0-0 draw at Burnley on Saturday.