The FA have apologised to Tottenham and Manchester United for a tweet sent out mocking Harry Kane after Saturday's FA Cup semi-final.

Kane failed to find the net during Spurs' 2-1 defeat at Wembley, leading to criticism on social media.

The official FA Cup Twitter account joked about the England international's performance, tweeting: "What's in your pocket, Chris" and a video of United defender Chris Smalling saying "Harry Kane".

The tweet was shared thousands of times before it was later deleted.

An FA spokesperson said: "We have written to both clubs to apologise for any offence caused."

Kane struggled to impose himself on the game but moved to deny claims that he was injured.

"That's people's opinion," said Kane. "People are always going to look for something to say when maybe you're not firing at your best. At the end of the day, I've still scored two in my last four (games). It's not the worst in the world.

"But when you set standards, people are going to look for things when you're not at them. I'm the same. I want to be better, I want to do better.

"I feel good. I feel sharp. It's been a tough week, a tough week for the team."