British Prime Minister Theresa May has backed Ireland's bid to host the 2023 Rugby World Cup.
Ireland want to help rugby crack the United States by hosting the 2023 World Cup.
Tonga will face England at the 2019 World Cup after Fiji's victory over Samoa secured their place in Japan.
Tickets for games at the 2023 Rugby World Cup could be as low as €20 if an all-Ireland bid for the tournament is successful.
The United States joined England in Pool C of the 2019 World Cup after hammering Canada 52-16 in San Diego.
Ireland, France and South Africa have formally submitted bids to host the 2023 Rugby World Cup.
Scotland head coach Gregor Townsend says playing hosts Japan will make their 2019 World Cup campaign more challenging.
New Zealand head coach Steve Hansen says he is likely to call time on his coaching career after the 2019 Rugby World Cup.
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