The 22-year-old striker, who currently plies his trade with French club Evian, is said to have been watched by scouts from West Ham at the weekend.
After learning of the Hammers' interest, the Benin international admitted that he would be tempted by a move to Upton Park.
"Joining West Ham would be ideal for me," he told Sky Sports News. "I love the Premier League, even though West Ham are in the Championship, which is also a top league.
"I want to be part of a team who will make progress. But nothing is done yet, so I am happy where I am.
"But I would love the opportunity to play in England in my career."
Sagbo is likely to cost around £2m.