By Jamie Spencer & Graeme Bailey Manchester United are highly unlikely to use their option to extend Anthony Martial’s contract at Old Trafford beyond its original expiry date next summer, sources have confirmed to 90min. The deal that Martial signed early in 2019 is due to run until June 2024. As is often the case at United, it included an option that could be used to push the end of the contract by a further year to 2025 instead. However, 90min understands that the chance of it being triggered in Martial’s case is very low, with the player himself also ready to accept that his time at the cl…