Leroy Sane's powerful rocket of a strike connected with Matthias Ginter and sent the player crashing to the floor during Bayern Munich's 3-2 defeat to Borussia Monchengladbach.
Monchengladbach welcomed the defending German champions to Borussia-Park for their Bundesliga clash on Friday.
Sane, who left Manchester City in 2020 to complete a sensational move to Bayern, forced the match to stop in the second half as his side trailed 3-2.
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The 24-year-old German winger received the ball and decided to try his luck from 35 yards out.
However, Sane's powerful long-range shot was intercepted by Ginter's head, who immediately fell back into the box before the referee blew for his whistle.
Both Bayern and Monchengladbach players checked on the 26-year-old German centre-back as the referee called for assistance.
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Ginter received treatment and remained on the pitch as Monchengladbach sealed a big victory over Bayern in the Bundesliga.
Robert Lewandowski opened the scoring for Bayern in the 20th minute from the spot-kick before Leon Goretzka added in his side's second minutes later.
However, Marco Rose's men responded through Jonas Hofmann, who scored a first-half brace to stun Bayern.
Florian Neuhaus extended Monchengladbach's lead early into the second half and ensured that his side walked away with all three points.
Bayern are currently top of the Bundesliga and are two points clear of RB Leipzig, though Julian Nagelsmann's side have a match in hand.
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Hans-Dieter Flick's men will return to action next Wednesday in their German Cup clash against Holstein Kiel at the Holstein-Stadion.
Featured Image Credit: SuperSoccer TVTopics: Bayern Munich, Borussia Monchengladbach, Leroy Sane, Bundesliga