Lisandro Martinez transfer could end three Manchester United careers

Erik ten Hag did not need to do much research to identify Manchester United's need for defensive reinforcements this summer. In the five matches played after it was officially announced he would take charge of the club at the end of the season, they conceded nine goals, four of which came away to Brighton.

The Dutchman was even in attendance for the defeat by Crystal Palace on the final day of the campaign as United conceded their 57th goal of the Premier League season, marking their worst defensive record in a single top-flight season since 1979.

Strengthening in midfield was identified as United's biggest priority this summer, and there is a hope that the planned arrival of Frenkie de Jong will strengthen the squad so much that there will be less reliance on their centre-backs next season.

READ MORE: United make £37m offer for Lisandro Martinez

United's dire defensive record is not just about their actual defenders, but as much about a lack of protection from the midfield and forwards who do not do their fair share of pressing when out of possession.

With tactical tweaks, Ten Hag might well be able to make a marked improvement before spending any money, though he is still keen to recruit a left-footed defender who can bring balance to the backline and help unlock their potential as a team that builds from the back.

It is no surprise then to see United's interest in Lisandro Martinez, with United having placed a £37m bid for the Ajax defender over the weekend.

Given United spent £122m on Harry Maguire and Raphael Varane there is an appreciation that any new defensive recruit might not go straight into the starting line-up. Instead, United are looking to bolster their ranks with a worthy back-up who has the potential to