Albion trialist Paddy McCourt's hopes of securing a deal have been hit by injury.
The 30-year-old former Barnsley playmaker has been training with the Seagulls this week.
He watched Tuesday night's Capital One Cup win against Cheltenham at the Amex, then featured in a friendly for the under 21s at Southend the following day.
McCourt's involvement in the match was curtailed and he does not have much time left to prove he is worth taking on.
Boss Sami Hyypia told The Argus: "He's going to be here a few more days and then we will make a decision.
"He played (at Southend) but unfortunately he twisted his ankle a little bit, so he didn't play as much as I would have wanted."