Many thanks to Ayako for the link!
NOJE, a Swedish site, has a post up detailing Michael Nyqvist’s injury on the John WIck set. The article is in Swedish but translates well with the google translator. Here are the key points:
Michael Nyqvist just finished shooting John Wick. During one of the stunt scenes, he got smacked. He says:
I got smacked . It went so damn fast that I barely know what happened. Suddenly, I was on all fours and it was bleeding like crazy.
He was hit in the head. He had a brain scan and the cut required 80 stitches. The filming also reulted in a newfound friend in the star Keanu Reeves. Nyqvist said the following about Keanu:
Keanu is good, a good actor and very nice to work with
The article is here.