In a match between the current world champion and the reigning Olympic champion, the current world champion Carolina Marin came out on top. Displaying skill and agility, Marin outdueled China's Li Xuerui, who also fell and injured her knee during the match. Marin won in straight sets, 21-14 and 21-16, clinching a spot in the gold medal match on Friday. The Spaniard's rise to prominence has been remarkable, and she'll look to cap it off with a gold medal win on Friday morning. (Note: Li Xuerui might not play in the bronze medal match if her injury is too severe).