Jose Mourinho has confirmed that the Chilean star Alexis Sanchez will miss Manchester United's clash with Juventus on Tuesday evening at Old Trafford. Sanchez flew straight to London for the match against Chelsea after his international duty but was named on the bench by his manager. Before the international break, the former Arsenal man came on as a substitute to help his side secure a 3-2 victory over Newcastle United. However, it was probably insufficient to impress his manager.After less than a year at Old Trafford, there had been plenty of rumours speculating about Sanchez's exit. Many fans are also unhappy that while he gets paid highly, he is not contributing sufficiently to his side. There is seemingly no end to the amount of criticism that the 29-year-old faces following every match he plays in a Manchester United shirt.On the other hand, supporters of the Red Devils have asked for Anthony Martial to replace Sanchez in the starting eleven and things are finally beginning to go right for the French youngster. Martial joined the club with high hopes of becoming a future star, but his potential has largely been restricted by Mourinho's refusal to give him game time. The 22-year-old was so close to leaving the club in the summer, but somehow Mourinho managed to keep him in the team.As things stand, the future for Sanchez looks bleak and few clubs will be willing to pay him as much as Manchester United does. Many believe that missing the UEFA Champions League clash is a sign that things are over for the former Barcelona attacker. Here was how Twitter reacted to the news.Alexis Sanchez has been ruled out of Manchester United's Champions League clash with Juventus, after the club ran some tests and the results showed that he was absolutely shite these days.— Paddy Power (@paddypower) October 22, 2018Mourinho has confirmed Alexis Sanchez won't play against Juventus after missing training today. Valencia is back after having an operation on his mouth.— Rob Dawson (@RobDawsonESPN) October 22, 2018Jose: "Alexis Sanchez is not fit. Nothing to hide."— Simon Stone (@sistoney67) October 22, 2018Alexis Sanchez unavailable for Utd's CL game tomorrow. Man U fans everywhere: pic.twitter.com/27Z7GVgZiD— Tommy Ettling (@maldoror84) October 22, 2018Alexis Sanchez plays same resultAlexis Sanchez doesn't play same result!!! pic.twitter.com/tOykqauGoX— MELOMANIAC 🌍🔥 (@Ifemmavibes) October 22, 2018If United sold Sanchez I won’t be surprised nor annoyed #MUFC— Rick Sanchez 🇨🇩🏴󠁧󠁢󠁥󠁮󠁧󠁿 (@RickSanchez_7) October 22, 2018So much BS about @Alexis_Sanchez. Just because he isn’t fit doesn’t mean he is leaving @ManUtd or unhappy or mad at Jose. Give the guy a break https://t.co/toc0e3cTMc— Sel (@MancSel) October 22, 2018🍆 Martial FC... pic.twitter.com/3iC1oiEBWn— The Sportsman (@TheSportsman) October 22, 2018BREAKING: Alexis Sanchez will not feature in Manchester United's Champions League clash with Juventus, Jose Mourinho has confirmed.Leaving in January? pic.twitter.com/RDD5b1hwYG— Bets On All Footy (@BetsOnAllFooty) October 22, 2018Martial FC!— G0DMvND (@ElmaDave) October 22, 2018Now Jose and Sanchez 😂 pic.twitter.com/QDBJxyxOgm— Caqilka Dadka Dulman 🇸🇴🔥 (@CaliBaashi88) October 22, 2018If I was A Sanchez I would leave man utd and go somewhere else where he would get better treatment he is,getting nothing from that fraud mourhino dropped from squad with no explanation why Alexis your better than that Man #mufc— Kevin Keating (@officialkevin44) October 22, 2018Martial playing well. Man Utd winning. Man Utd buy Alexis Sanchez. Man Utd drop Martial. Man Utd start losing. Man Utd drop Alexis Sanchez. Martial playing well. Man Utd winning.— Dan Stephens (@_danstephens_) October 22, 2018I thought this one was signed to play the piano Alexis Sanchez absent from Man Utd training amid exit rumours https://t.co/g09VTFykOl— Caiphus Kgosana (@CaiphusK_11) October 22, 2018Thank u Lord— GEMINI (@jabusky17) October 22, 2018