The Reds will visit the Emirates Stadium on Monday, with the right-back tasked with nullifying the Chilean.
Everton defender John Stones has been linked with Premier League rivals Manchester United and Chelsea.
Is Andy Carroll the reason West Ham co-owner David Sullivan is so pessimistic regarding Charlie Austin?
Alan Shearer suggests that Sunderland will lose to Swansea City in the Premier League on Saturday.
The Scotland boss has been discussing Celtic's Champions League play-off second leg against Malmo.
Nottingham Forest manager Dougie Freedman has piled the praise onto midfielder Henri Lansbury.
Both sets of fans were casting an eye over the Saints forward's Europa League performance on social media.
Tom Lees is looking forward to facing his former club Leeds this weekend.
The French midfielder has been full of praise for his Arsenal central midfield partner.
Former Manchester United midfielder Gordon Hill explained that he wants his old side to go after Tottenham Hotspur forward Harry Kane.