Springbok skipper Siya Kolisi scored two tries as the Sharks edged a nine-try thriller at Kings Park.
Kolisi finished off several forward drives to open the scoring before a sublime counter attack saw Makzole Mapimpi put Jurenzo Julius over for the second.
Alessandro Gesi collected a cross-field kick from Giovanni Montemauri for Zebre’s opening try. Giacomo Ferrari wormed his way over and Montemauri slotted a penalty to put Zebre ahead 17-14.
Kolisi, from a lineout maul, sniped down the right wing and sprinted 40m for his second try before Vincent Koch scored the bonus point try.
Geronimo Pr...