He was boxing well, but it wasnt 5-1 Khan lol. From the 3rd round on, Canelo was in seek and destroy mode and Khan wasnt throwing enough punches. It was like once Khan felt Canelos power, he stopped landing combinations and Canelo was able to corner Khan and work that body hard. Canelos body work was impressive and really slowed Khan down, loosening Khan up for the KO.
A bit different vitaly was doing the beating and Lewis missed and thumbed his eye and couldn't get off his stool and motioned for the fight to be stopped.