Why Lleyton Hewitt might be forced to dump Alex de Minaur for Australia's Davis Cup semi-final
Kokkinakis produced a stunning win over Ben Shelton in the quarter-final after saving four match points, and has won his last four matches at Davis Cup level. Hewitt continues to back Kokkinakis and show loyalty in the World No.77, despite the 28-year-old being ranked more than 50 places below both Popyrin and Thompson.