Ferguson: the most important thing is to stop Xavi, Iniesta, and Messi © EuroFootball.com

Strategist Sir Alex Ferguson acknowledges that the most important task in the Champions League final will be to stop three attacking footballers.

On May 28, the teams will clash at London's "Wembley" stadium.

"Of course, Barcelona is currently very powerful," the Scotsman told the Sirius XM radio station. "We have to find a way to stop the trio of Xavi, Lionel Messi, and Andres Iniesta."

Everyone is looking for it because they are wonderful footballers. We have players who cause a lot of trouble for opponents, so I hope they will not allow the Catalan defenders to catch their breath.