The versatile 29-year old has joined the Seagulls on a one-month deal with manager Sami Hyypia keen to strengthen his side amidst some injury concerns.
"With Aaron Hughes out injured we were faced with a similar problem we have had in goal and needed cover," Hyypia told the club's official website.
"Greg has an abundance of experience not only in the Championship but also in the Premier League, and with Aaron out we wanted that level of experience to be replaced as well, so he is a good fit."
Nottingham Forest FC (@Official_NFFC) November 4, 2014
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