Man United must listen to Darwin Nunez Liverpool transfer warning before sanctioning £30m move

Manchester United know their margin for error with transfers has increasingly tightened under Sir Jim Ratcliffe and his Ineos group.

The Reds' restrictions with PSR (Profit and Sustainability Rules) have meant that any error in the transfer market this summer will only set Ruben Amorim's team back even further. After a season in which the genuine fear of relegation has emerged for the first time in a generation, United can no longer afford a misstep with new signings.

One area of the pitch, in particular, is crucial for the Reds' prospects going into next season under Amorim. Forwards Rasmus Hojlund, Joshua Zirkzee and Alejandro Garnacho have struggled badly this term, with just 23 goals between them across all competitions.

It's a pitiful return that highlights the weakest area of a squad laced with seemingly endless problems. While many of United's current attacking options are young and have some promise, they cannot be relied upon to lead the line for another campaign.

Recent reports have seen Sporting Lisbon winger Francisco Trincao linked with a £30million move to Old Trafford. The 25-year-old knows Reds boss Amorim well, having made 131 appearances under the former Braga head coach.

Trincao has looked impressive in his native Portugal, scoring 32 goals in 143 appearances. He looks like a player reborn from his previous struggles on loan at Wolves from Barcelona.

But that should serve as a warning to United. Players have excelled away from the Premier League in lesser-quality competitions for a reason.

There is also a recent precedent of a forward struggling after leaving a top Portuguese team to join one of English football's big clubs. Liverpool found this out to their determinant, having signed Darwin Nunez