I showed a lot of heart β Jack Draper proud of βbig winβ after five-set battle
The British number one came from two sets to one down to see off Argentinaβs Mariano Navone.
The 25-year-old, who missed most of last season through injury, defeated qualifier Leolia Jeanjean
Tsitsipas was knocked out in the first round at the second grand slam in a row, as Alex Michelsen claimed a big upset
The two-time winner defeated Sloane Stephens 6-3 6-2 on a rain-delayed opening day in Melbourne