The Manchester Evening News says the 19-year-old has a £17.5m release clause in his contract, which can be activated from June 30, and eight clubs are willing to pay even more than that amount to win the race to sign the full-back before then. Arnautovic previously played under the United boss when he was on loan at Inter in 2009/10, albeit for only a handful of matches.
The former England global believes Mourinho's playing style is not suited to a club with attacking traditions like United and that if the Portuguese coaches side do not get off to a good start to next season the 55-year-old will start to come under some serious pressure from fans of the 20 times league champions. "I would say I am even further away from being exhausted now than I was a few years ago".
United, meanwhile, are hopeful of bolstering their defensive options with Portugal under-21 full-back Diogo Dalot to add competition for regular right-back Antonio Valencia, who will turn 33 in August. They will be a team to watch. "As a United fan you want to compete for the league and compete in Europe as well, but winning the FA Cup and coming second, you can build on that and we all hope they can compete for the Premier League next year".
Mourinho said he believed Portugal, coached by Fernando Santos, could do well in Russian Federation and added: "Well, Portugal did get to the semifinal in 2006 and we also won the European Championship in 2016, so that means we are among the best teams in the world".
Fred was also flattered by the interest from two of the world's biggest teams, saying "it's an honour to be on the radar of great European coaches". They have a mix of good experienced players and quality players.