Liverpool are considering a move in signing Borussia Dortmund defender Neven Subotic this summer. The 27-year-old has struggled with form and fitness as he has featured only in five league fixtures in the 2015/16 season.

According to The Sun, the Reds are set to rekindle their interest in the Serbian centre-back as Jurgen Klopp looks to bolster his back four for the new campaign. He has played under the German coach when the latter was the manager at Signal Iduna Park.

Klopp was replaced by Thomas Tuchel and Subotic has fallen down the pecking order. He last featured for his side against Tottenham Hotspur on 17 March and a thrombosis in his arm ruled him out for the final two months of the last term.

Subotic is keen on looking for an exit in the summer transfer window after failing to impress Tuchel. After Liverpool replaced Brendan Rodgers with Klopp, the defender was wanted by the Merseyside club's manager at Anfield.

The Serbian defender has two years left on his contract with his current employers. Lack of playing time at Dortmund has left him frustrated and the situation has forced him to look elsewhere in the market, his agent, Frieder Gramm revealed.

"Currently it does not look like he will get more game time in the upcoming season. But he absolutely wants to play, and does not want to earn his money on the bench. We are currently scouting the market," The Sun quoted Gramm as saying.

Subotic's representative's remarks will only come as a boost for Liverpool in their pursuit of signing him. However, the Premier League outfit have not opened talks with Dortmund or tabled a bid for their player.

Klopp joined Dortmund from Mainz 05 in 2008 and he took Subotic along with as he was his first signing at Dortmund. He went on to become a key figure in the heart of the Bundesliga side's defence alongside Mats Hummels, who has now returned to Bayern Munich.

Hummels followed Ilkay Gundogan out of Dortmund as the midfielder completed his move to Manchester City. The German international became Pep Guardiola's first signing at the Etihad. With two high-profile departures and Henrikh Mkhitaryan pushing for a move to Manchester United, Tuchel would be looking to retain his star players at the club.