Kagawa joined United on Tuesday in a £12million deal - potentially rising to £17million - from German champions Borussia Dortmund.
The purchase will be welcomed in the Far East and it has not gone unnoticed that this will strengthen United hold on a lucrative market.
Red Devils commercial director Richard Arnold recently boasted that the club has 659million fans worldwide, many of whom are based in Asia.
But Arnold claims all of United's players are iconic figures.
"We don't sign players to sell shirts," he said. "We are reliant on 25 players and they are all massive stars.
"We have 25 George Clooneys.
"When you look at the success we've seen in that part of the world, it isn't down to any one player or person."