As the second round of group games began we saw history made in Sydney, a football superstar in injury strife, and broken hearts for the co-hosts. 

Here are the five talking points from day six of the action from the Women's World Cup.

1. Phair effort for a 16-year-old

Throughout South Korea's opener against Colombia on Tuesday, players stayed loose behind the goal.

Early in the 78th minute, one player broke away from the group.

Casey Phair, at 16 years and 26 days, stepped onto the field and became the youngest player to do so in a World Cup — women's or men's.

"Going on, I was really, really nervous," said Phair, who has an American father and a South Korean mother and was raised in the United States.

"It was a scary moment, but then going on and running around, I think it just settled in."

The record was previously held by the late Ifeanyi Chiejine, who was 16 years and 34 days old when she played for Nigeria in the 1999 Women's World Cup.

In the 17 minutes she spent on the field in South Korea's 2-0 loss, Phair was near the ball at all times, competing with Colombian players for possession every chance she got.

"She deserved the chance to play," South Korea's head coach Collin Bell said.

"She trained really well, just as well as anybody. I wanted to throw her on to give her that experience."

Phair's next chance to play comes Sunday, when the Taegeuk Ladies take on Morocco in Adelaide.

Born on June 29, 2007, in South Korea, Phair is also the first multi-ethnic player, female or male, to play for a South Korean senior national team.

"I'm really proud and really honoured to be the first mixed player for the Korean Federation," Phair said.

"I really appreciate the opportunity I was given today."

2. Colombia win with coach suspended

On the other side of the South Korea and Colombia clash, the Las Cafeteras notched their victory with head coach Nelson Abadía serving the first of a two-game suspension.

Colombia's manager since 2017, Abadía received a red card at the end of the 2022 Copa América Femenina final for arguing with a match official. A spokesman for CONMEBOL, the governing body for South America's international tournaments, did not provide any other details about the incident.

The red card was equivalent to a two-game suspension, which meant Colombia's first two games in Group H at the global tournament. Abadía will also miss the game against Group H favourite Germany on Sunday.