Japan has produced another Rugby World Cup shocker to beat an Ireland team that was ranked No. 1 coming into the tournament.

Japan beat South Africa in the 2015 World Cup in what was considered the biggest upset in the tournament’s history.

The 19-12 win over Ireland on Saturday is another massive result, particularly for the first Rugby World Cup held in Asia.

Japan leads Pool A with wins over Russia and Ireland. The Irish had opened with an emphatic 27-3 win over Scotland and had been a heavy favourite to win.