So is the chain of events?
Rumour appears in The Sun
Spreads to other forums
The player himself is asked, appearing to know little of it.
Andy Naylor says that his Fulham contacts would be surprised if it happened.
Mind you, those pages value Solly March at 66k and Leo Ulloa at 1.76m...
http://www.transfermarkt.co.uk/brighton-amp-hove-albion/startseite/verein/1237/saison_id/2014
Reading his reaction to the Fulham supporters, who asked about his future, doesn't necessarily mean he is going to another club, just simply that it appears enquiries/bids have been received.