He was whoopin that ass up until the last 2 rounds then ortiz started looking like he was struggling with his heart. Wilder hadn't even done anything to him then but he was slumped in the corner gasping for air and i knew old man ortiz wouldnt be able to avoid the windmills. All of this is totally ignored of course
Back of the head punches, elbows to the face, judo throw, ref approved excessive clinching, granting Wilder extra time to recuperate, hitting after the bell and blatant referee bias is what did Ortiz in.