Arsenal’s Kolasinac’s shoulder clattered into Brighton’s Ezequiel Schelotto head with such force that Schelotto lost consciousness for awhile.The medical staff took about 7 minutes to revive him and help him stagger off the field.
And the ref did nothing about it.
Kolasinac was already on a yellow card and another card would have reduced Arsenal to 10 men.
Ref Stuart Attwell must be an Arsenal fan at heart.

Wait a second, how did Kolasinac get away with that? Not even booked. pic.twitter.com/qOFBaYS7mj

— BiHfootball (@BiHFootball) March 4, 2018