Virgo, 23 left the Seagulls last summer for a staggering £1,500,000 to the Scottish giants whom where recently crowed league Champions whilst Brighton where relegated from the Championship.
He started off as a trainee for Brighton in August 2000 until he joined Celtic in July 2005, between then he played 72 (+ 10 as a sub) games at the Withdean club whilst notching 10 goals. In November 2003 he joined Exeter City on a 6 months loan where he played 8 (+ 1 as sub) games.
It is believed that Neil Warnock could bring Virgo to Bramall Lane after featuring in only 12 games for the Hoops, the majority being manly substitute appearances as he looks to strengthen his defence.