South Korea's Casey Phair controls the ball during the Women's World Cup Group H soccer match between Colombia and South Korea at the Sydney Football Stadium on Tuesday.

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CNN  — 

South Korea forward Casey Phair on Tuesday became the youngest ever player to appear at the World Cup – just 26 days after celebrating her 16th birthday.

The US-born teenager came on as a 78th minute substitute in South Korea’s 2-0 loss to Colombia in Sydney, beating the record of Nigeria’s Ifeanyi Chiejine, who was 16 years and 34 days old at the 1999 Women’s World Cup.

The Group H clash Tuesday also saw another record broken – the 22 years and 256 days between Phair and South Korean goalkeeper Kim Jung-mi is the biggest age gap between teammates in Women’s World Cup history, according to FIFA.