Park knows what itâ€™s like to carry the expectations of a nation in Europe, having become Unitedâ€™s first Korean player when he arrived from PSV in 2005.
Similarly, Kagawa will be the Redsâ€™ maiden Japanese signing and he, too, is making the switch from another European club in Borussia Dortmund.
"I know United have agreed a deal for Kagawa and I'm happy because weâ€™re signing a good player," Park told ManUtd.kr at an event hosted by his JS Foundation.
"Manchester United is a huge club and every season, we sign new, world-class names. I hope Kagawa shows how good he is next season and I think he will do."