Ferguson has decided to save the 32-year-old defender for the weekend derby with Manchester City.
“He played very well on Saturday but playing three games in seven days is lot to ask of players when they get to their 30s,” said Ferguson.
“It is the right moment to give him a rest.”
Ferguson admits the clash with Otelul Galati is important for United, as the Red Devils have drawn their opening two games in their Champions League group.
“Against Basle we became very complacent and it’s not a tournament where you can afford to be complacent, so tomorrow is an important game for us now,” added Ferguson.
“We have to win, so I’ll play a strong team. But I can play several teams and they would still be strong enough to win the game
“The timescale for recovery is perfect for us, and it’s the same for City as well.”
