ATP Tour

Watch highlights as Novak Djokovic and Nick Kyrgios prevail on Stadium Court in their third-round matches at the Miami Open presented by Itau. Photo: Michael Reaves/Getty Images. Watch live tennis streams at http://www.tennistv.com.

Roger Federer believes his form is getting better each day at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Watch as Filip Krajinovic turns a flick of the wrist into a gorgeous passing shot against Roger Federer at the Miami Open presented by Itau. Photo: Yong Neck Lim/Getty Images. Watch live tennis streams at http://www.tennistv.com.

Watch as Roger Federer holds off a challenge from Filip Krajinovic in their third-round clash at the Miami Open presented by Itau. Photo: Peter Staples/Miami Open. Watch live tennis streams at http://www.tennistv.com.

Roger Federer takes advantage of his opportunity in a grueling rally with Filip Krajinovic at the Miami Open presented by Itau. Photo: Peter Staples/Miami Open. Watch live tennis streams at http://www.tennistv.com.

Grigor Dimitrov, John Isner, Radu Albot and Jeremy Chardy and Steve Johnson all are puzzled by the headlines caused by "Florida Man".

Frances Tiafoe relives the week he won his maiden ATP Tour title at the Delray Beach Open by VITACOST.com.

Nick Kyrgios is thriving in the new home of the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Watch as Nick Kyrgios gets everyone in Stadium Court buzzing with this unconventional tactic against Dusan Lajovic at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Nick Kyrgios wasted no time getting down to the Hot Shots against Dusan Lajovic at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Watch a mic'd up Craig Boynton coach Hubert Hurkacz in a training session at the Miami Open presented by Itau.

Novak Djokovic was impressed by the game of Federico Delbonis after their third-round tussle at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Felix Auger-Aliassime closes out his opening set against Hubert Hurkacz with an exclamation point against Hubert Hurkacz at the Miami Open presented by Itau. Photo: Julian Finney/Getty Images. Watch live tennis streams at http://www.tennistv.com.

Watch Hot Shot as John Isner hits the target with a backhand down the line to reach set point against Albert Ramos-Vinolas at the Miami Open presented by Itau. Photo credit: Michael Reaves/Getty Images. Watch live tennis streams at http://www.tennistv.com.

Watch highlights from Day 4 at the Miami Open presented by Itau, as Roger Federer and David Ferrer both produced impressive comebacks from a set down to reach the third round. Watch live tennis streams at http://www.tennistv.com.

Watch as Stan Wawrinka has the right answer to cap a brilliant rally against Filip Krajinovic, at the Miami Open presented by Itau.. Watch live tennis at https://www.tennistv.com.

David Ferrer records the upset of the tournament by ousting second seed Alexander Zverev at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

David Ferrer is all smiles after his huge win over second seed Alexander Zverev at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Kei Nishikori, Marin Cilic and Nick Kyrgios were among the players who motivated kids to become positive forces in their community during Miami Unites Day at the Miami Open presented by Itau. Photo Credit: Peter Staples/Miami Open. Watch live tennis streams at http://www.tennistv.com.

Frances Tiafoe doesn't hold back on this forehand winner against Miomir Kecmanovic at the Miami Open presented by Itau. Photo: Michael Reaves/Getty Images. Watch live tennis streams at http://www.tennistv.com.

"The first title changes anybody," says Daniil Medvedev in his ATP My Story delivered by FedEx.

Alexander Zverev emphatically breaks David Ferrer early at the Miami Open presented by Itau. Photo: Matthew Stockman/Getty Images. Watch live tennis streams at http://www.tennistv.com.

Stefanos Tsitsipas is pleased with how he rounded into form against Mackenzie McDonald at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Roger Federer discusses coming through a stern test from Radu Albot at the Miami Open presented by Itau. Watch live tennis streams at http://www.tennistv.com.

Watch as Roger Federer unloads on a backhand at a crucial moment against Radu Albot at the Miami Open presented by Itau. Photo: Julian Finney/Getty Images. Watch live tennis streams at http://www.tennistv.com.