Neil Warnock has already made four signings since joining the club earlier in the week and it's the first glimpse of ambition for years from the club.
The latest instalment of the Severnside derby takes place on Friday evening, and it is being broadcast live.
The former Aston Villa winger becomes Neil Warnock's fourth free transfer of the week.
Kieran Richardson has been a free agent since leaving Villa Park in the summer, but could now be set for a move to Cardiff City after training with the Welsh club.
Should Leeds United boss Garry Monk make a late move for the 31-year-old?
Loan signings are forbidden but unattached players can still move on free transfers, meaning the likes of Preston, Wigan and Bristol City could strengthen.
Alan Pardew may be tempted to look at the free agents currently available after Pape Souare was ruled out for six months.
Bristol City have reportedly snubbed the chance to sign trialist Kieran Richardson, who has been linked with Leeds.
Leeds United are reported to be interested in Kieran Richardson.
Leeds United could move for the experienced Premier League player.
With Jordan Amavi out injured for the rest of the season, manager Remi Garde has revealed that he will consider trying to recall the French left-back from his loan spell at Porto in January.
The decision to drop Jordan Amavi for Kieran Richardson did not go down well.
Tim Sherwood has praised Aston Villa duo Kieran Richardson and Jordan Ayew following the 2-0 defeat to Chelsea.