After successfully securing the services of Chelsea playmaker Juan Mata, Manchester United manager David Moyes could do a lot worse than returning for the Spaniard's former teammate David Luiz this summer.
The 26-year-old, despite his reputation for being a little on the erratic side, is a fine central defender who has proven that he is also adept at playing in a holding midfield role.
For some bizarre reason, the Brazil international has never been taken entirely seriously since becoming a Premier League player in 2011.
The hairstyle clearly doesn't sit well with some.
However, you don't cement your status as a regular in the Brazilian national team, or find yourself the subject of a £34.5m bid from Barcelona, unless you're a high-quality player.
And there's no doubt that Luiz, who has made 33 appearances for his country since making his international debut in 2010, is a high-quality player.
Yes, he's made a few errors during his time at Stamford Bridge, but on the whole he has more than justified the €25m fee that Chelsea paid to Benfica three years ago.
Nevertheless, it seems increasingly likely that Luiz will find himself reduced to the role of substitute next season.
Chelsea not only completed the signing of midfielder Nemanja Matic - who initially left Stamford Bridge in order to join Benfica as part of the Luiz deal - last month, but they also paid £12m to Saint-Etienne for promising centre-back Kurt Zouma, who will arrive in west London this summer.
This seems to indicate that Mourinho does not regard Luiz as part of his long-term vision for the Blues, while recent reports suggest that the Portuguese coach would sell if the club receive an offer which matches their valuation of the player: £35m.
Considering that United will need to spend - and spend big - in order to become competitive again following a disastrous campaign, Moyes should seriously consider making an ambitious bid for the South American.
With club captain Nemanja Vidic off in the summer, the club are crying out for a new top-class centre-back. The fact that this centre-back can also double up as an accomplished holding midfielder makes him even more of a no-brainer for the Red Devils' boss.
That's not to say that Manchester United shouldn't go all out to sign another world-class midfielder in the summer - quite clearly, they should - but players of Luiz's calibre aren't made readily available very often.
United should ignore the naysayers and spend big to bring the versatile Brazilian to Old Trafford.
And they are best advised to act before the 2014 World Cup finals, after which Mourinho is likely to experience a sudden change of heart.