Manchester United will not allow Anthony Martial to leave the club in January, according to Sky sources, despite the forward's agent claiming interest from Sevilla in his client. Martial is currently on the fringes of manager Jose Mourinho's first-team having struggled to recapture his fine form from his first season at Old Trafford, when he top scored for United with 17 goals. The 21-year-old has scored just four times this campaign and Mourinho has advised him to follow the example set by previously out-of-favour midfielder Henrikh Mkhitaryan in order to force his way back into the starting line-up. Martial's representative, Philippe Lamboley, claimed on Wednesday that the France international is wanted by Sevilla and says an agreement could be reached during the January transfer window The France forward has been unable to regain his form of last season "We are studying the Sevilla option in detail," Lamboley told Spanish radio station ABCdeSevilla. "Sevilla are a very good club, are in a good position in La Liga, play in the Champions League and have a great coach. That's all I can tell you." Martial became the most expensive teenager in football history when he joined United from Monaco for an initial £36m in September 2015. He made an instant impact for United, scoring a superb solo goal on his debut in a 3-1 victory over rivals Liverpool at Old Trafford. Martial continued to impress during his debut season in England and helped United win the FA Cup in May - their first major trophy in three years - with a 2-1 victory over Crystal Palace at Wembley.
