His international career spanned from 1976 to 1988, including a record 105 appearances for
New Zealand (beating the record previously held by
Brian Turner), 58 of which were A-internationals. Sumner scored a national record six goals during New Zealand's 13–0 defeat of
Fiji during the
1982 World Cup qualifying campaign. He was also one of New Zealand's only two scorers in the 1982 World Cup Finals tournament in Spain (along with
Steve Wooddin), in New Zealand's 5–2 loss to
Scotland. He was the first player of the
FIFA Oceania zone to score in a
World Cup. In 1991, he was inducted into the New Zealand Soccer Media Association Hall of Fame and was then awarded FIFA's top award, the
FIFA Order of Merit, before the opening of the
2010 FIFA World Cup, along with
Johan Cruyff and former South African president
Thabo Mbeki. ==Career statistics==