(CNN) Dubbed the 'Professor,' history maker Hyeon Chung walked away from Rod Laver Arena at the Australian Open with straight As. "Obviously I respect him a lot because he's a hard worker, he's disciplined, he's a nice guy, he's quiet. Another top-10 win for SandgrenSo did Sandgren, who had never even won a grand slam match prior to this fortnight. Australian Cricket Captain @stevesmith49 meets 19x Grand Slam Champion @rogerfederer. 1 and 2016 Australian Open winner, won her 13th straight match to begin 2018 after a dismal 2017.

Source: CNN January 22, 2018 12:10 UTC