​After failing to sign a central defender in the summer transfer window at the beginning of last season, ​Manchester United will be out to rectify their mistake by diving into the market for a centre back this year.

While many defenders have been linked with a move to Old Trafford in the recent past, latest reports have narrowed down the list of United's options to just three defenders from which the club will select their man.

As reported by ​Manchester Evening NewsManchester United are continuing to monitor ​Napoli centre half Kalidou Koulibaly and Milan Skriniar of ​Inter Milan ahead of the summer window. They are also said to be tracking ​Sampdoria's Joachim Anderson as their third option.

The Red Devils have shown immense improvement under new coach Ole Gunnar Solskjaer but the United board is said to understand the need for a centre-back in the summer despite United having had four clean sheets from Solskjaer's 10 games in charge, conceding just seven goals in the process.

The report goes on to state that when United enquired about the Skriniar last summer, Inter demanded £76m, which is a million more than the world record fee for a defender which Liverpool paid to Southampton for Virgil van Dijk. At that time, United gave up in their chase for Koulibaly and could not sign Alderweireld too.

Meanwhile, Skriniar has not signed an improved contract at Inter and his current deal in Italy runs until 2022, but he has indicated his intention to stay in Milan. He previously said in an interview last month, "You all know I want to stay at Inter. I have a great relationship with the club and the directors. We're talking and we're close to an agreement."

Whether Manchester United are successful in bringing any one of these defenders to Old Trafford still remains to be seen, but it will definitely be an interesting transfer window in the summer this year.