Ferguson told the club’s official website: “Ji-Sung had 45 minutes in the reserves on Thursday night and that was enough for him at this stage of his recovery.
“It’s good to have him back, though, because he gives me the option of resting Ryan Giggs or Ronaldo.
“He can play on both sides, so he’s an important player to have fit. Ryan can play in-field and the return to fitness of Ji-Sung helps him because he can play out wide and allow Ryan to move inside.”