There was the NWSL before Olivia Moultrie, and there is the NWSL after Olivia Moultrie.
The Portland Thorns midfielder was once the youngest player to make the jump to the league, fighting a legal battle that in 2021 overturned the NWSL’s age minimum of 18 and allowed minors to sign professional contracts. She made her professional debut for the Thorns just over two months later at age 15.