Diego Costa is a rat bastard. This much is known by everyone. What might not be known about Costa is that as of today, he sits at the top of the Premier League scoring chart with eight goals on the season. When he's not fouling or complaining incessantly, Costa is certainly finding the net.In Chelsea's match against Southampton today, Costa was laid out a tidy little pass from Eden Hazard at the top of the box in the 55th minute, and caused his defender to back track, goofy-footed, trying to block his attempt. But the shot was far too elusive in its 20-yard voyage home to the back of the goal. Costa is putting up goals as filthy as his theatrical antics.