The 31-year old winger has a hamstring injury which he picked up against Blackburn Rovers at the start of the month and
Giggs however, still believed he has a chance and has yet to give up hope of playing. Giggs has returned to training.
"If all goes to plan I will start training some time during the week," Giggs told MUTV earlier this week.
"If there are no setbacks we will see what happens but at this stage I honestly don't know."