Saturday’s FA Cup semi-final proved, once again, that Kyle Walker can’t be trusted in big games. Indeed, Manchester City need to find a replacement for him if they’re to claim as many trophies as they’re capable of in the next few years.

It's simple, the 28-year-old is a liability in City’s back four. In possession, the one weakness is always him. He gives the ball away far too much under pressure for a Pep Guardiola player, but it's even worse how he has moments of madness that nobody quite understands.

Whether that be leaving the ball for Claudio Bravo, then watching Will Grigg kick City out of the FA Cup last year, or the poor excuse of a headbutt against Brighton, he has these moments that only he’s capable of in this otherwise calm Blues side.

It’s not good enough.

Yes, he’s probably as fast an Olympic sprinter, sprays the ball to the opposite fullback quite well, and wins most of his defensive duels, but there’s just something about him that’s not right in the head. He seems like the stereotypical footballer – all brawn, no brains.

On most occasions, he’s a solid full-back with the energy to cover the distance Guardiola demands, but considering he’s City’s best right-back, losing his head in big games isn’t acceptable. The club, once again, find themselves needing new full-backs on both sides.

Walker shouldn’t be written off, of course. He’s still a top player, but in the summer, they need another full-back to take over when brains are required and nerves have to be held.

City fans, what did you think of the headbutt incident at the weekend? Join the discussion by commenting below...