Manchester United interim boss Ryan Giggs admits it will be a challenge to replace Nemanja Vidic.
Vidic says farewell to the Old Trafford crowd tonight against Hull City.
Giggs admits Vidic will be a hard man to replace and said: "It's always the same when great players leave the club.
"The club carries on, but it's always difficult when they do leave because they give such service and you do need to replace these sort of players.
"Not like for like sometimes, but obviously with top quality."
