Liverpool manager Kenny Dalglish believes Manchester United counterpart Sir Alex Ferguson may have a trick or two up his sleeve in the Champions League final on Saturday.
Ferguson's United side are aiming to win the Champions League for a third time since he became manager when they face Barcelona at Wembley.
The Spanish champions are being tipped to win by the majority of the football community but Dalglish remains cautious about the outcome.
The Anfield legend, who helped the Reds win the European Cup three times, told Sky Sports: "Saturday is a huge game for both clubs. Obviously Barcelona you would imagine would be favourites.
"They will have to be stopped but they have been stopped. I am sure Fergie has recognised some chinks in their armour but they are a fantastic team to watch.
"It is very difficult to judge how close it is going to be. Someone could be sent off in the first minute, someone could play fantastically well."
Barcelona's strength was emphasised in the World Player of the Year awards with Lionel Messi finishing top with team-mates Andreas Iniesta second and Xavi third.
While Dalglish recognises the trio's quality, he complimented United's front two of Wayne Rooney and Javier Hernandez.
Dalglish said: "When you have three players from one team in the running for World Player of the Year you are a useful side.
"Wayne Rooney is not a bad player either and Javier Hernandez has had a great season. So we can sit back and relax and watch it. It doesn't matter to us."Reuse content