Cisse is reported to have cost Fulham around three times that amount two years ago.
Cisse joined Fulham from Standard Liege two years ago, at a reported cost of £2.25 million (Transfermarkt).
But he has played just 13 times for the London side, who are expected to cull their squad after being relegated back to the Championship.
And after entering the final year of his contract at Craven Cottage, Cisse is one of those on whom Fulham may look to cash in.
Whether or not they are willing to take a near £1.7 million hit on the 25-year-old Guinea international, however, remains to be seen.
Fulham have already released the high-profile first-team pair, Ryan Babel and Lazar Markovic, and cut short Andre Schurrle's loan spell.
Meanwhile, the Cottagers' stars, Ryan Sessegnon and Aleksandar Mitrovic have interest from a number of clubs, including Manchester United and West Ham United, respectively, according to The Sun.
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