Saturday's Six Nations clash between England and Ireland got off to a nightmarish start for the Twickenham hosts after Charlie Ewels was sent off after just 82 seconds.
The Bath lock rushed up in an effort to stub out Ireland's advances but made direct head-to-head contact with Irish counterpart James Ryan.
The Leinster man struggled to stand up following the collision and swiftly came off the field for a head injury assessment (HIA), while referee Mathieu Raynal showed Ewels a straight red card.