The Scotland international has been sidelined since last November with ulcerative colitis, a form of inflammatory bowel disease, and says he is taking his recovery slowly to make sure he can be of use to both United and his national team in the future.
|ROONEY TOP DOG?|
|14/1||Manchester United to win the Premier League and Wayne Rooney to be top scorer is 14/1 with Paddy Power|
"It's complicated to talk about, it's really difficult. But I have to make sure I'm right when I come back, which will hopefully be beneficial for Manchester United and Scotland and make sure I'm ready when needed."
Fletcher's last game came against Benfica in the Champions League at Old Trafford, when he scored in a 2-2 draw.
The 28-year-old later announced that he would be taking an extended break from football following medical advice about his illness.