Son Heung-min

Son Heung-min has renewed his contract with Germany's Hamburg SV until 2015. The player's agent, Thies Bliemeister, told the Daily Mail on Thursday that Son will stay with the Bundesliga club for an additional year.

European football clubs generally begin negotiating new contracts one or two years before expiration. Hamburg reportedly offered its highest annual salary of 3.90 million euros to hold onto Son, who has received much attention from prestigious clubs such as Manchester United and Chelsea. Hamburg and Bliemeister didn’t reveal the exact amount for the renewal deal.

Though the team was pushing for a two-year extension, Son only agreed to one additional year, apparently making a room for another negotiation next season as he has been receiving much attention recently. He scored nine goals in 21 games this season and could expect more money if he continues to perform well.

Britain's Sky Sports recently valued Son at 18 million pounds and gave a positive outlook that he could earn up to 50 million pounds.

Big-name clubs like Chelsea and Manchester United continue to express interest in Son.

"He has signed a new contract with Hamburg SV extending it for one year, but there have been offers for him from Manchester United and Chelsea," his agent said. He added that Son was visited by Inter Milan at a couple of matches as well.