It's been a disappointing day for Australia's final two men involved at the Shanghai Masters.
After Jordan Thompson, Chris O'Connell, Rinky Hijikata and Li Tu were knocked out in rounds one and two, compatriots Alexei Popyrin and Aleksandar Vukic suffered the same fate in the round of 16 on Tuesday.
Popyrin was beaten 7-6 (7-5) 6-2 by ninth seed Grigor Dimitrov in one hour 30 minutes, while Vukic went down 6-4 6-2 to Czech Tomas Machac.
