Manchester United legend Rio Ferdinand has taken aim at his former club, arguing they made a serious error by allowing Arsenal to sign Ezri Konsa from Aston Villa for £51 million without mounting any challenge.

United had been linked with the 28-year-old England international during the summer transfer window as the club looked to address persistent defensive vulnerabilities. In the end, they did not move, and Arsenal secured Konsa's signature in August.

Ferdinand voiced his frustration on his YouTube channel in the wake of a troubling defensive run — United conceding 15 goals across nine matches — insisting the versatile defender was exactly the profile Old Trafford needed.