South Africa's Sharks remained the only undefeated team in Super Rugby after a fourth round in which their match and one other pivoted on penalty kicks in extra time.
The ACT Brumbies and Durban-based Sharks are the only unbeaten teams in Super Rugby after a third round which posed new questions about the strength of New Zealand teams.
Argentina's Jaguares made a winning debut in Super Rugby but the other newcomers, Japan's Sunwolves and South Africa's Kings, lost in the weekend's opening round as did both of last year's finalists.
Captain Sam Cane scored from a lineout drive in the 77th minute to clinch the Chiefs' 27-21 win over the Crusaders Saturday in the first round of Super Rugby.
England coach Eddie Jones cast doubt on the wisdom of Ireland selecting Johnny Sexton for the teams' Six Nations match on Saturday, saying the flyhalf's parents would be concerned about his health problems.
Squeezing past Italy is one thing for France; beating Six Nations champion Ireland is quite another.