The Premier League club signed Min-hyeok Yang in the summer, but he is now joining in January.
While Son is excited to have another Korean on the team, he feels the pressure on Min-hyeok must be minimal.
Asked about Yang by The Standard , Son said: "I don't want people to get too excited. There's not any pressure (on him).
"He's a similar age to Mikey Moore. Everyone loves Mikey and when Yang is here I hope everyone loves him like Mikey.
“He's been fantastic in his first season in the K-League, scored 12 goals and a lot of assists. He's bright. He's not scared.
"He's a very bright player so I'm excited he's coming here and I'll try to help him as much as I can. But we just have to avoid putting pressure on him. The football side is the most important thing for him (to focus on)."
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