AFTER a night of upsets that saw Hyeon Chung topple Novak Djokovic and Tennys Sandgren defeat Dominic Thiem, the top men’s seeds will want to see normality resume when they take to the court on Tuesday. Fresh from his four-set win over Nick Kyrgios on Sunday night, World No. 3 Grigor Dimitrov takes on Brit Kyle Edmund this afternoon on Rod Laver Arena. Kyrgios told the Bulgarian to “believe” as he shoots for his first major crown while Edmund will be hoping he has enough gas left in the tank after playing two five-setters and a four-setter in his past three matches. Top seed Rafael Nadal surrendered his first set of the tournament to Diego Schwartzman in his last start and will be wary of Marin Cilic, who came back from a set down to defeat Pablo Carreno Busta in the round of 16. On the women’s side unseeded Belgian Elise Mertens continued her dream run at Melbourne Park with a straight sets victory over World No. 4 Elina Svitolina. Caroline Wozniacki — fresh from hitting her first ever successful tweener in a match — may need to pull out some more tricks to overcome veteran Carla Suarez Navarro in the other quarter-final of the day.