Pontus Jansson has become the latest Leeds United defender to suffer an injury ahead of the festive period.
Celtic boss Brendan Rodgers is reportedly on Aston Villa's radar, and the Championship side are apparently planning an approach.
Championship strugglers Aston Villa have been linked with many free-agent defenders but are they running out of options?
Aston Villa are one of several clubs credited with interest in Caulker.
Aston Villa and Wigan Athletic reportedly want to sign Steven Caulker on a free transfer.
Aston Villa are reportedly hoping to take former Dundee defender Steven Caulker on trial as Steve Bruce's Championship side look for a centre-back.
It seems highly unlikely that Aston Villa would be pushing for Steven Caulker if they could also bring in John Terry.
James Collins has reportedly been hoping to re-join Aston Villa.
Aston Villa are believed to want central defender Steven Caulker on a free transfer.
Aston Villa boss Steve Bruce wants some defensive additions.