Roma president James Pallotta has insisted that he does not want star defender Mehdi Benatia to leave.
Swansea chairman Huw Jenkins has admitted Wilfried Bony could leave the Liberty Stadium if the 'right offer' is made.
The 27-year-old joined the Seagulls from Spanish club Almeria in January 2013 and has proved to be an important player for them.
Promoted Premier League club Leicester City are reported to be interested in Ulloa, but Hyypia hopes that Brighton can fend off all interest from the Foxes.
“Last season goalscoring was a problem and that is something that needs to be looked at,” The Argus quotes him as saying. “The club has rejected a few offers for him (Ulloa). I need to talk to him. Hopefully he will stay.”
Hyypia has also spoken about his side’s defence for next season.
“With them (right-backs Bruno and Inigo Calderon) we have agreed about extensions I believe,” he said.
“We are trying to get Stephen Ward back (on loan from Wolverhampton Wanderers).”