The Three Lions won 2-0 at Elland Road with Rashford opening the scoring with a brilliant effort from outside the box before Danny Welbeck sealed the victory in the second half.
Rashford picked up the ball 25 yards from goal on the right hand before swivelling and letting fly with a fierce dipping dipping strike over a Keylor Navas and into the top left corner.
Scroll down for video
Marcus Rashford scored a stunning goal as England beat Costa Rica 2-0 on Thursday
Rashford opened the scoring at Elland Road with a brilliant strike from long range
Assistant Steve Holland (2nd left) was seen showing his appreciation towards the goal
As the Manchester United man celebrated the cameras cut to England assistant manager Steve Holland, who could be seen saying ‘what a f****** goal to Gareth Southgate, the England boss nodding in agreement.
England fans were quick to notice the x-rated praise from Holland, taking to Twitter to highlight it.
Rashford looks set to go head-to-head with Raheem Sterling as England gear up to jet off to Russia ahead of their World Cup opener on June 18 and Southgate was clearly impressed by the youngster’s display on Thursday.
Manchester United’s Rashford was the star of the show in England’s final warm up game
‘What pleased me most is that he enjoyed his football tonight, he played with a real swagger,’ Southgate said of Rashford. ‘He’s a Man United player and was booed at the start and cheered off at the end, so that tells you about his performance.
‘Well I thought his linking was good, his individuality and running at people and taking people on in an around the penalty area was good. Of course it’s a wonderful strike for the goal. And he worked incredibly hard for the team to press and shut down.
‘He had a difficult end to the season, having to play on his own as a nine at times. He’s still filling out and growing, we often forget how young he is. But today he had that exuberance and you could see he was teasing defenders and it was lovely to see.’
Both Holland (right) and England manager Gareth Southgate were clearly impressed