Southend are determined not to lose Ryan Leonard but Sheffield United are refusing to take no for an answer.
The Sheffield United boss has confirmed his side's past interest in Millwall's Wallace, who was owned by Wolverhampton Wanderers until July.
Aston Villa have been linked with a move for the Sheffield United striker this week.
Sheffield United's Chris Wilder and Bristol City's Lee Johnson are winning plaudits this season.
The Sheffield United manager looks set to be overlooked by West Bromwich Albion in favour of Alan Pardew.
West Bromwich Albion appear to be stepping up their pursuit of their next manager, according to reports.
Sheffield United boss Chris Wilder admits he needs cover in central midfield - and The Blades may look at Ryan Leonard again.
The Sheffield United manager is many West Brom fans' choice for the role.
The Sheffield United boss remains an outsider for the West Bromwich Albion job with the bookmakers.
Could West Brom turn to the Championship and these Brentford, Fulham and Sheffield United bosses to potentially replace Tony Pulis as manager?