Former badminton Olympic gold winner Marin retires due to injury
The 32-year-old won gold in the women's singles at the 2016 Rio de Janeiro Olympic Games, and remains the only player from a non-Asian country to do so.
Three-time world champion Marin had hoped to compete in the European Championships in April in Huelva, her home city in Andalucia, but did not want to risk further damaging her knee.
At the Paris Olympics in 2024 she reached the semi-finals but suffered a knee ligament injury during the match which forced her to withdraw, having already missed the 2020 Tokyo Olympics with another knee injury.