He was also stripped of his European welterweight title .
Seconds later , Spence landed an uppercut -- hook combination which left Bundu slumped on the canvas unconscious , in his first knockout loss .
Bundu was also stripped of Bundu 's European welterweight title .
Seconds later , Spence landed an uppercut -- hook combination which left Bundu slumped on the canvas unconscious , in his first knockout loss .