The FA has apologised to Tottenham and Manchester United after the official FA Cup Twitter account posted a joke mocking Harry Kane’s performance against Chris Smalling in the semi-final at Wembley on Saturday.

The tweet, which was later deleted, read: “What’s that in your pocket Chris?” and linked to an unrelated video of the Manchester United defender saying “Harry Kane”.

“We have written to both clubs to apologise for any offence caused,” said an FA spokesman.

Goals from Alexis Sánchez and Ander Herrera saw Manchester United come from behind to beat Spurs 2-1, after Dele Alli had given Mauricio Pochettino’s side an early lead.