Manchester United and Chelsea target Son Heung-Min's agent has revealed the forward is delaying contract talks with Hamburg and hinted he could leave the club in the summer.

The 20-year-old has been impressed with the Bundesliga outfit this season, scoring nine goals in 22 appearances so far. The South Korean has also been a regular for his national side, since making his senior international debut three years ago.

Son Heung-Min

Son's current deal with Hamburg will run out in 2014 and the Germans are hoping the youngster would agree on an extension that would keep him at Imtech Arena till 2017. However, according to the player's representative Thies Bliemeister, Son has put negotiations of a new contract on hold, possibly till the end of the season.

"We have been talking to HSV and the discussions have been good. However, there is no time pressure for us or HSV to get a deal sorted," Sky Sports quoted the agent.

Bliemeister had earlier stated that Son had received several offers from some top European clubs, including United and Chelsea, regarding a summer move, while Inter Milan have also been scouting him of late.

"A transfer in the next summer? There have been many offers for him as from Manchester United and Chelsea. Inter Milan's emissaries saw a couple of his matches, but so far I have not had any contact with the Italian club's officials," Bliemeister added.

Son can play anywhere across the frontline and also operates as an advancing midfielder. The Asian star's 6ft-plus frame makes him more of a physical presence than many of his compatriots. The player joined Hamburg's youth setup from Seoul's Dongbuk High School in 2008 as a 16-year-old and broke into their first team two years later.

Liverpool have been long-time admirers of Son, while Tottenham Hotspur were also understood to have joined the race recently. If Son snubs the new deal, it is highly likely that Hamburg will listen to offers for the forward in the summer, as they would not want to risk losing him for free at the end of next season.