That ref was reminiscent of Manuel from Faulty Towers.... How he ruled that a slip was a joke... Martinez could barely stand up after it, he had teh wobbly boot on.
It does look like a slip in that gif, none of those shots landed. But yeh, he did seem wobbly getting up from memory.
He struggled to get up as well, I think the last shot that looked like a grazing shot to the back of the head hurt him.
True Murray landed a few shots before and Sergios head movement caused Murray to hit him on the back of the head. Legitimate KD.