The winger has been exceptional at times this season, but appears to be struggling at the moment.
Arsenal are currently seven points behind leaders Chelsea in second place in the Premier League.
So who could Celtic have been keeping their eyes on.
Queens Park Rangers remain in the relegation zone following a 1-0 loss at home Chelsea.
Tottenham full back DeAndre Yedlin made his debut for the club against Aston Villa on Saturday.
Former Sunderland player Kevin Kilbane has talked up Southampton’s Europa league chances.
Ronny Deila has come to the defence of Celtic captain Scott Brown.
Sean Morrison was discussing the atmosphere, considering the fact there were no Cardiff fans present.
Ashley Young, Marouane Fellaini and Daley Blind linked up to devastating effect as Manchester United won the derby against rivals City.
The former QPR boss is a huge fan of the Brazilian.