The transfer window may be closed, but rumours and speculation continue to swirl as Manchester United eye possible January reinforcements.

After a summer which saw them let Romelu Lukaku and Alexis Sanchez leave without bringing in a direct replacement, an attacker is thought to be the club's priority when the transfer window reopens.

Here, Sports Mole rounds up the latest news on possible comings and goings from Old Trafford.

Sunday morning's headlines:

Arsenal 'leading race for Chris Smalling'
Manchester United centre-back Chris Smalling is a transfer target for Arsenal, according to a report. Read more.

Manchester City, Manchester United, Chelsea considering Samuel Umtiti swoop?
Barcelona centre-back Samuel Umtiti is a transfer target for Manchester City, Manchester United and Chelsea, according to a report. Read more.

Ernesto Valverde: 'Arturo Vidal could leave Barcelona in January'
Arturo Vidal will reportedly look to leave Barcelona in January with manager Ernesto Valverde suggesting that the club could be open to his departure. Read more.

Real Madrid 'must raise £84m to avoid Financial Fair Play punishment'
Real Madrid reportedly need to generate more than £84m this season to avoid a Financial Fair Play punishment, affecting their chances of signing Man United's Paul Pogba. Read more.