Hamburg manager Thorsten Fink says the club is desperate to hold on to striker Son Heung-min.
The 20-year old South Korean has recently been linked with Liverpool and Arsenal but Fink wants to retain his services at the Imtech Arena.
"We want to achieve something with Son," Fink told German Sky Sport News.
"I think it would be better for his sporting development, if he stayed and played with us.
"When anyone plays well, there is of course always a bit of transfer speculation about him.
"Ultimately, Son must know that we want to build something here and we have kept hold of players who want to also achieve something."
