Wayne Rooney has urged Manchester United to resist the temptation to target world superstars such as Cristiano Ronaldo or Gareth Bale because he fears it could prove a huge waste of money.
The Red Devils are in the early stages of a new era under the leadership of manager Ole Gunnar Solskjaer and have been linked with a host of established top-tier players.
They are eager to rival neighbours Manchester City, who have pulled away to become the leading side in the Premier League, while United failed even to qualify for next season's Champions League.