dirty tackle, notice he has all his weight focused on his tackling foot (and therefore ki's ankle) when he easily could've slid in. see so many more bad tackles where the guy goes flying in like a battering ram instead of sliding in from the side. that's an easy yellow for me and a borderline red - could've broken ki's ankle.
look at sol campbell for a textbook sliding tackle. remember a good one he had in his cameo for us where he got the ball cleanly and took out the man too - but in a safe way.