Caroline Wozniacki suffers upset as Monica Puig advances to third round in Miami

World number two Caroline Wozniacki suffered an upset in the second round of the Miami Open as Monica Puig battled to a 0-6 6-4 6-4 win.

Wozniacki looked to be in command of the match as she won the first set 6-0 but Puig, ranked 82nd in the world, started to apply the pressure at the start of the second, setting up a break point in the first game.