Competitors programming their football robots before a match at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

Competitors programming their football robots before a match at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

Competitors testing their football robots before a match at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

Competitors testing their football robot before a match at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

Competitors testing their football robots before a match at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

A competitor placing his football robot on the pitch before a match at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

Robots playing football at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

Robots playing football at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP

Robots playing football at the annual RoboCup 2019 in Sydney, Australia, which sees the participation of some 170 teams from more than 30 countries. Photo courtesy: AFP