His club FC Dallas are now braced for offers ahead of the mid-season transfer window opening, and they believed to be hoping to receive a fee in the region of £10million for their prized asset.
Pepi has scored 13 goals in 27 MLS appearances so far this season, and earned senior international recognition in September.
He marked his debut for the United States by scoring against Honduras and has found the back of the net three times in just four caps thus far.
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