Kanye West posted a snap of himself in a retro Portsmouth shirtCredit: Instagram @kanyewest

Alan Knight wore the shirt during the 1990sCredit: Alamy

West, 46, has over 18million Instagram followers, and regularly likes to show off his latest fits on the platform.

In his most recent post, the rapper uploaded a selfie while wearing a 1996-97 Portsmouth goalkeeper shirt.

Fans were left puzzled as to how on earth West got hold of the rare jersey, with one asking: “How has kanye west got his hands on a 1996/7 Pompey goalkeeping kit, worn only once in the FA cup quarter finals against Chelsea, and has only 2 photos on the entire Internet (now 3).”

A second questioned: “What’s next, he’s gonna show up in Portsmouth?”

And a third joked: “No one had that on their 2023 bingo card I’m sure of it.”

Portsmouth themselves posted the snap, writing: “Up Ye Blues.”

Another fan responded: “Pompey = Massive.”

Portsmouth legend Alan Knight wore the kit, having represented the club between 1978 and 2000.

The 62-year-old joked: “@kanyewest can I have my shirt back please buddy. PUP.”

West has previously shown a liking for wearing football gear.

In 2018 he wore a Manchester United jacket.

While earlier this season he left fans guessing by turning up to Tyson Fury’s fight with Francis Ngannou in a mystery retro shirt.

Kanye West has become a fashion mogul in recent yearsCredit: Getty