Paul Pogba has cast doubt over his future at Manchester United after revealing he is considering “a new challenge”. Speculation on a possible move to Real Madrid or a return to former club Juventus has been mounting since a season in which Pogba faced criticism at times for his performances with United. The 26-year-old told reporters in Tokyo while attending an event held by sponsors Adidas that it could be time to leave Old Trafford. Paul Pogba, right, was sold by United to Juventus in 2012 for £1.5million (Nick Potts/PA) “Like you said, there is a lot of talking and a lot of thinking as well,” the France midfielder said. “For me I have been for three years in Manchester and have been doing great; some good moments and some bad moments, like everybody. Like everywhere else. “After everything that happened this season, with my season being my best season as well… I think for me it could be a good time to have a new challenge somewhere else. “I am thinking of this: to have a new challenge somewhere else.” United boss Ole Gunnar Solskjaer has made clear he will start to rebuild his squad this summer, but the club is likely to only consider a huge offer for one of their prize assets. Pogba was re-signed by United in the summer of 2016 from Juventus for a then world record transfer fee of £89million. He had spent four years with the Italian club after being sold to them by United for £1.5m in 2012. Topics Juventus, Ole Gunnar Solskjaer, Paul Pogba, Real Madrid, Premier League, Man Utd Solskjaer plays down Pogba’s Real Madrid comments Ole Gunnar Solskjaer not concerned with Paul Pogba rumours Where is it all going wrong for Manchester United? Solskjaer expects Pogba to be at Old Trafford next season Messi: Defeat leaves us feeling bitter Richarlison tells Brazil teammate to join him at Everton – report Man City pair to stay at the club, says striker Liverpool star rejects £150m move away from Anfield Man United consider move for West Ham defender – report The 7 highest-capped England Under-21 players – and what happened to them Quiz! Can you name every Chelsea manager of the Premier League era? 5 areas where Liverpool can improve this summer – and get to the next level Liverpool star rejects £150m move away from Anfield Liverpool defender on verge of AC Milan move