Hewitt's help arrives in the Nick of time

Under the watchful eye of new mentor Lleyton Hewitt, Nick Kyrgios began his US Open hard-court run with a 6-3, 4-6, 6-4 victory over Fernando Verdasco at the ATP Montreal Masters on Tuesday.

Kyrgios, ranked 38th in the world, is working alongside Australia's double Grand Slam winner in an informal capacity, with the 34-year-old elder statesman of the current Aussie game happy to help out the 20-year-old.

But Kyrgios said the arrangement remains flexible and fluid, with Hewitt also attending to his own business on court as he goes into the final months of a career due to end early in 2016 after playing in his last Australian Open.