Kokkinakis Seeks Sudden Impact Against Federer Mar 23, 2018 After a couple of years "off the radar", #NextGenATP Aussie Thanasai Kokkinakis is ready to make a big impact against Roger Federer at the Miami Open Saturday. Tags: 2018 Interviews Miami Thanasi Kokkinakis Share 0 Share on Facebook Tweet Tweet on Twitter +1 +1 on Google Plus