As the game approached the final ten minutes, England's left-sided defender jumped for a ball alongside Spain's teenage striker, who caught her with an elbow to the head, seemingly accidentally.
Greenwood understandably went down and looked in a bad way.
She was tended to by medical staff and lay on the grass for a couple of minutes.
Eventually though, Greenwood returned to her feet and had her head bandaged.
She refused to be substitute and insisted she could play on.
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As a result, she returned to the pitch soon afterwards and played on to the final whistle.
Sadly for England though, this made no difference to the end result.
Olga Carmona's 29th-minute goal was the difference maker as Spain won 1-0 and lifted the trophy, despite a heroic penalty save from Mary Earps.