The Scotland midfielder, 27, last featured for the Red Devils in the final game of the 2010-11 league campaign against Blackpool but had been sidelined for two months between early March and early May by the virus, which caused sudden weight loss.

He suffered a relapse over the summer but manager Sir Alex Ferguson confirmed this morning: "Fletcher is in the squad. He is back now."

Asensio's Screamer Vs FC Barcelona
Asensio's Screamer Vs FC Barcelona
In one of Real Madrid's most outstanding performances at the Camp Nou, Los Blancos beat FC Barcelona 3-1 in the Spanish Supercup. Real were leading 2-1 after Cristiano Ronaldo's 80th minute goal, but just before the final whistle, we sealed the win with this beautiful Marco Asensio strike.
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He also revealed that defender Rio Ferdinand was back in training following a hamstring injury and that winger Antonio Valencia was training well following an ankle injury.

Ferguson expects captain Nemanja Vidic to be out for another month with a calf problem.