I think it started when Mahrez fouled Taylor, the left back, in a sliding tackle and then as he was trying to get up, Williams went to retrieve the ball and accidentally-on-purpose trod on Mahrez' hand. There was a bit of eyeballing and later as Williams was running back to cover a Leicester...
CH was sacked by Naarch five matches from the end of the season, four of them deemed unwinnable because they were against Champions League contenders. The other was at Fulham, and Norwich dominated but lost 1-0, thanks to a certain Fulham goalkeeper named David Stockdale. I imagine CH's heart...