Liverpool are weighing up a summer move for Cardiff City defender Steven Caulker, [football] direct news understands. The 22-year-old has been one of the top performers for the Welsh side this season, though he could be available for transfer if Ole Gunnar Solskjaer’s side end up being relegated.googletag.cmd.push(function() { googletag.display(“div-gpt-ad-1389116196215-0”); });Cardiff currently sit in 18th place in what looks like being a close fight to stay up this season, but their recent form has been poor, with just two wins in their last ten games, and seven of those ending in defeat. Liverpool manager Brendan Rodgers has worked with Caulker before, taking the former Tottenham Hotspur centre-back on loan during his time in charge of Swansea City. It was during this time that the one-time England international found some of the best form of his career. Everton are also thought to be interested in Caulker, but a reunion with Rodgers may be the most tempting prospect for him as he looks to revive his career. The Reds are in need of defensive signings, with only their record at the back preventing them from being further ahead in this season’s title race. Despite boasting the best attack in the Premier League, they have the worst defensive record in the top four, and will now look to make some changes in that area. We think Steven (Caulker) could be tempted to work with Brendan (Rodgers) again, a club insider said. “It’ll be easier if Cardiff are relegared, so we’ll see what happens, nothing’s done yet.”Read more Cardiff City transfer news.