The next presidential election in the United States is still 20 months away, but a second Republican has already thrown her hat in the ring: Nikki Haley, a former South Carolina governor and ex-US ambassador to the United Nations.

A series of raids have resulted in the arrest of 25 alleged members of a trafficking ring that forced Chinese women into sex work in Europe.

Since hanging up his gloves, former Nigerien heavyweight boxing champion Abdoul Aziz Ousseini has turned to combating the issue of the neglected so-called 'street children' in the capital Niamey. Every weekend, Aziz dedicates his time to helping these young people, teaching them the skills of the sport and giving them a new occupation. One of his trainees has already won three West African titles, saying that Aziz helped "wake him up".

Bolivia's stylish cholita luchadoras are back in the ring, having successfully wrestled lockdown in South America and bouncing to get back to work.

Here are a few reasons to pick up a copy of The Guardian on Saturday. Find these stories and much more when you grab a copy of The Guardian on Saturday.⁣ ⁣

The bell rings in a gloomy basement in the Gaza Strip and two teenage girls wearing headgear and gloves start circling each other in the ring. Family and friends cheer them on as they begin landing punches in the first female-only boxing tournament in the Palestinian enclave.

World heavyweight champion Andy Ruiz and former titleholder Anthony Joshua will have a rematch this weekend in Saudi Arabia. Here are 7 things to know about the boxing rematch.