A sign outside Manchester United’s Carrington training ground has appeared to have been spray painted with the message ‘Pogba Out’ amid speculation over the midfielder’s future.The Frenchman has endured a testing time at Old Trafford since returning from Juventus in 2016 and faced further criticism in August when he missed a penalty against Wolves.Having been heavily linked with a move away from the club, with Zinedine Zidane keen to take him to Real Madrid, Pogba’s long-term future at the club remains uncertain. Article continues below Editors’ Picks What is Manchester United’s ownership situation and how would Kevin Glazer’s sale of shares affect the club? Ox-rated! Dream night in Genk for Liverpool ace after injury nightmare Messi a man for all Champions League seasons – but will this really be Barcelona’s? Are Chelsea this season’s Ajax? Super-subs Batshuayi & Pulisic show Blues can dare to dream An image has now circulated on social media appearing to show a sign at the club’s training ground daubed with ‘Pogba Out’ in red spray paint.The picture comes at a time where it seems some fans are losing patience with the 26-year-old as United continue to stumble in their pursuit to return to former glories, with Pogba having previously suggested he wants a new challenge.Playing in the Europa League under Ole Gunnar Solskjaer this season, the club are desperate to get back into the top four and challenge for the title.However, after drawing 1-1 at Molineux, the Red Devils succumbed to a 2-1 defeat at home to Crystal Palace and already trail Premier League leaders Liverpool by five points after just three matches.Photo: ‘Pogba Out’ has been spray-painted on a sign outside Carrington #mulive [sun via @MUnitedFR] pic.twitter.com/SvcC1SYy0C— utdreport (@utdreport) August 28, 2019As Pogba is one of the club’s star names, his performances are often under intense scrutiny, particularly when things don’t go to plan.Supporters and pundits alike were irked when Marcus Rashford stepped aside for Pogba to take the spot-kick at Wolves, only for Rui Patricio to keep out the attempt and ensure his side earned a point.Pogba was targeted with vile racist abuse on social media following the incident, while Rashford suffered similar treatment after hitting the post as the Red Devils missed another penalty against Palace.Solskjaer backed his player following the penalty furore and insisted that while abuse makes Pogba stronger, it must stop.”Paul’s a strong character and it makes him stronger,” he said. “When you speak to him, he’s fine and I just cannot believe we’re still sat here in 2019 talking about these instances.”Social media is a place where people – as Harry [Maguire] said – can hide behind fake identities, I don’t think it’s not down to me to change it but there are so many Ole Gunnar Solskjaer’s on Twitter I know it’s not me!”We’ve got to do something about it and the authorities have got to do something about the ones who spread this hate.”We need to protect individuals and protect people. When there are death threats and racism, they are serious incidents. Sometimes you get annoyed.”What can we do about it? Us as Man United, we’re not going to ban our players on social media, we have to spread the good word, because there is so much good we can use social media for but we have to stop those incidents.”United are back in action on August 31 when they face Ralph Hasenhuttl’s Southampton.