With the game going out live on TV in his homeland, millions of eyes will be on the midfielder.
Park has battled back from injury to help United retain their Barclays Premier League crown.
Manager Sir Alex Ferguson has been delighted with the player's attitude, describing him as "a fantastic professional", and hinting he will play a part in the showpiece match in Russia.
Park said: "I am very pleased to hear those words from the manager. The team is always more important than the individual.
"I am getting better and better after missing half of the season through injury. Now I feel 100 per cent and am very happy about that. This will be the biggest game in my career because every player wants to be involved in the Champions League final.
"We have a good mix of young and experienced players and are continuing to improve. Hopefully we can make new history for the club.
"I think we have the edge over Chelsea because we are more confident after winning the title."
Ferguson added: "He has a chance of playing as he has played most of our games recently.
"The boy is a fantastic professional, he gives 100 per cent. He is dedicated and is a good footballer."