Alvarez withstood plenty of power shots from Kirkland a year ago , and was largely unaffected by the 129 punches Cotto threw at him .
Alvarez never gets knocked down , let alone knocked out , and that 's not much of a concern for him on Saturday .
Alvarez withstood plenty of power shots from Kirkland a year ago , and was largely unaffected by the 129 punches Cotto threw at Alvarez .
Alvarez never gets knocked down , let alone knocked out , and that 's not much of a concern for him on Saturday .