Huth has recovered from his ankle injury and could be the solution Jose Mourinho is looking for in giving John Terry a rest.
The Chelsea coach is on record as saying that his skipper is in need of some time out from the first team and Huth's return is a possibility.
Carlo Cudicini is expected to be between the sticks in place of regular goalie Petr Cech.
Chelsea have to win at Old Trafford to progress into the final after a tense 1st leg ended 0-0 at Stamford Bridge two weeks' ago.