Multiple Olympic and world champion Mo Farah said his elite track career could be over after he finished runner-up in the London 10,000 annual road running event on Monday on his return to action. Farah, who completed the 5,000 and 10,000 metres double at the 2012 and 2016 Olympics, was racing for the first time since June after failing to qualify for last year’s Tokyo Games. 🔥𝐖𝐡𝐚𝐭 𝐚 𝐟𝐢𝐧𝐢𝐬𝐡!🔥@elliscross96 produces a stunning performance to win the Vitality London 10,000 beating Sir @Mo_Farah in the home stretch.#London10000 #CelebrateYou pic.twitter.com/wisIV9KHPU — Vitality London 10,000 (@Lo…