The 22-year-old front-man netted 13 goals in 15 outings for Dutch side Groningen in 2008/09 - including four in one match against Roda JC - having scored 18 the previous season.
However, the youngster shot to fame during the recent U21 European Championships in Sweden, where Berg bagged seven goals in four matches as the hosts eventually bowed out on penalties to England at the semi-final stage.
Liverpool, Everton, Tottenham Hotspur, Aston Villa, Ajax, Stuttgart, Fiorentina, Lazio, Villarreal and Hamburg have already been linked with the starlet's signature this summer.
And although the latter were believed to have agreed a fee in the region of €10 million to take the rising star to Germany, Groningen manager Henk Veldmate has since revealed that Roy Hodgson's Cottagers have now expressed interest in the forward.
"Fulham and Hamburg are the only ones left who are now in conversation with us when it comes to Marcus Berg," he said in The Sun.
"We have had some meetings with both clubs. We will see what happens in the next couple of days.
"But I can say both these clubs have been concrete in their interest and we know Marcus wants to leave us for a bigger club."
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