The Cameroon midfielder is a target for Manchester United, though Brighton are insisting he won't leave for less than £120m.
Ahead of Brighton's Premier League opener with Fulham, Hurzeler says Baleba is available for selection and in good spirits.
The German said this morning: "I didn't see any change, he's only changed his hair. I think that's the change he's made in the last two weeks.
"But overall he seems to be in a really good place, he's enjoying it with his team-mates, he's enjoying being a Brighton player.
"I didn't see any big changes and he's an option to start tomorrow."
Asked about how confident he is of keeping hold of Baleba, Hurzeler replied: "Very very very confident, that's just my belief."
