Kokkinakis faces a hard road, says Hewitt
What will be the big tennis story of the summer? Roger Federer's reappearance? A Nick Kyrgios charm offensive? For John Newcombe, one component will be a successful comeback from injury for Thanasi Kokkinakis, even as Lleyton Hewitt warns that the young South Australian faces a "tough" return after what has effectively been a year away.