England's Under-20 side are now in action at the U-20 World Cup in South Korea.
Victory would have seen the Lions progress but they are still well placed going into their game against hosts South Korea on May 26.
Lewis Cook gave England the lead seven minutes into the second half, but shortly afterwards a moment of madness from Tomori brought Guinea level.
The Red Devils goalkeeper was turning out for England in a group stage meeting with Guinea.
On the 59th minute, Chelsea academy graduate Fikayo Tomori made a decision to hit a 40-yard pass back to his goalkeeper, only to see the ball roll past the 'keeper and into the back of his own net.More news: Pyongyang celebrates as North Korea fetes scientists behind Hwasong-12 launch
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To be fair to Henderson, the pass was incredibly hard and out-of-the-blue, but what was he doing so far off of his line?
An own-goal by England defender Fikayo Tomori handed Guinea a 1-1 draw Tuesday at the Under-20 World Cup. "But I think we've got to be honest - it's a freaky own goal that allowed Guinea to get the equaliser".
The game ended 1-1, leaving England top of Group A on four points from two games, but having played one more game than South Korea and Argentina. Guinea kept up the pressure as the European side crafted clear sights of goal, but a famous win was just out of reach.
Lets just hope they learn from the embarrassing OG, eh?