The duo were given a difficult night at the Nou Camp by Barcelona's front three in midweek.
The Gunners forward has endured a somewhat disappointing second campaign in England.
West Ham United travel to fierce rivals Chelsea today for a crunch London derby and there's plenty for Slaven Bilic to consider.
Mohamed Elneny has made a big impact at Arsenal.
The West Ham captain was left out in favour of Leicester City's Danny Drinkwater.
The 24-year-old Tottenham Hotspur midfielder dazzled according to several statistics, but do those figures reflect the reality?
The former US Under-20 international has returned to the States after failing to get his career off the ground in Europe.
Arsenal fans are currently split on Arsene Wenger's future and the club's poor form.
The Sunderland manager admits that he was surprised to see the Spaniard take over at St. James' Park.
Simon Mignolet says Manchester United's chief tormentor Philippe Coutinho scores superb goals against him all the time in training.