Manchester United have been heavily linked with a move for Benfica centre-back Victor Lindelof but the Red Devils may well be better off going for his team-mate Nelson Semedo instead.
Jose Mourinho’s men are hardly lacking for cover in central defence with Eric Bailly having proven a brilliant signing since joining from Villarreal in the summer.
Meanwhile, Phil Jones and Marcos Rojo, whose United careers looked uncertain following the appointment of Mourinho, have both been impressive this season after being given an unexpected run in the team.
Chris Smalling is also fit again and ready to return after a spell out while the versatile Daley Blind has rarely let United down at centre-back.
However, right-back remains a position where United are severely lacking options. Antonio Valencia has been successfully converted to a full-back and is deservedly first choice at the moment.
However, the Ecuardorian has unfortunately suffered with injuries in recent seasons and turns 32 next year. While currently he is an excellent option, a long-term replacement is clearly needed.
Matteo Darmian has been brought in but has been largely inconsistent and often preferred at left-back. Either way the Italian has hardly presented a convincing case as being the right-back of the future and has frequently been linked with a move back to Serie A.
United have been linked with Monaco full-back Fabinho although that speculation cooled after the Brazilian signed a new five-year deal with the club back in September.
However, Semedo is an excellent option although he will not come cheap. The full-back reportedly has a release fee of £50m, yet quality right-backs appear thin on the ground presently and while it is a huge investment it could pay off with the Portuguese having only recently turned 23.
The Benfica man clearly has a long and promising future ahead of him and has been a virtual ever-present for his club side this season, with two goals and four assists already this season.
He has also helped his side to the top of the Primeira Liga table, six points clear of nearest challengers Porto in second place.
Semedo also has Champions League experience and will play in the knockout stages with Benfica having qualified and been drawn to face Borussia Dortmund in the round of 16.
The 23-year-old certainly appears to have all the ingredients needed and could well prove to be a more successful investment than Lindelof.