Australian Open

MELBOURNE, AUSTRALIA - JANUARY 20: Frances Tiafoe of the United States plays a backhand in his fourth round match against Grigor Dimitrov of Bulgaria during day seven of the 2019 Australian Open at Melbourne Park on January 20, 2019 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)

Australian Open Fourth Round Upsets and Updates

Australian Open Upset Alert: Angelique Kerber falls to Danielle Rose Collins

Serena Williams creates major hurdle for top seeded Simona Halep

Australian Open Third Round Upsets and Updates

MELBOURNE, AUSTRALIA - JANUARY 17: Denis Shapovalov of Canada celebrates winning a point in his second round match against Daniel Taro of Japan during day four of the 2019 Australian Open at Melbourne Park on January 17, 2019 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Denis Shapovalov has nothing to lose at the Australian Open

MELBOURNE, AUSTRALIA - JANUARY 17: Serena Williams of the United States serves during her second round match against Eugene Bouchard of Canada during day four of the 2019 Australian Open at Melbourne Park on January 17, 2019 in Melbourne, Australia. ( (Photo by Cameron Spencer/Getty Images)

Eugenie Bouchard believes Serena Williams is Australian Open favorite

MELBOURNE, AUSTRALIA - JANUARY 17: Simona Halep of Romania plays a forehand in her second round match against Sofia Kenin of the United States during day four of the 2019 Australian Open at Melbourne Park on January 17, 2019 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)

2019 Australian Open Second Round Upsets and Updates

MELBOURNE, AUSTRALIA - JANUARY 16: Frances Tiafoe of France plays a backhand in his second round match against Kevin Anderson of South Africa during day three of the 2019 Australian Open at Melbourne Park on January 16, 2019 in Melbourne, Australia. (Photo by Mark Kolbe/Getty Images)

Frances Tiafoe completes one of the 2019 Australian Open’s biggest upsets

MELBOURNE, AUSTRALIA - JANUARY 15: Jo-Wilfried Tsonga of France serves in his first round match against Martin Klizan of Slovakia during day two of the 2019 Australian Open at Melbourne Park on January 15, 2019 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images)

Novak Djokovic or Jo-Wilfried Tsonga next at the Australian Open?

MELBOURNE, AUSTRALIA - JANUARY 14: Sloane Stephens of the United States plays a forehand in her first round match against Taylor Townsend of the United States during day one of the 2019 Australian Open at Melbourne Park on January 14, 2019 in Melbourne, Australia. (Photo by Quinn Rooney/Getty Images)

Sloane Stephens makes impressive impact on Australian Open

BRISBANE, AUSTRALIA - JANUARY 01: James Duckworth of Australia looks on in his match against Andy Murray of Great Britain during day three of the 2019 Brisbane International at Pat Rafter Arena on January 01, 2019 in Brisbane, Australia. (Photo by Albert Perez/Getty Images)

James Duckworth vs Rafael Nadal: Australian Open Match Preview

MELBOURNE, AUSTRALIA - JANUARY 28: Roger Federer (L) of Switzerland poses with the Norman Brookes Challenge Cup after winning the 2018 Australian Open Men's Singles Final against Marin Cilic of Croatia, posing with the runners-up trophy on day 14 of the 2018 Australian Open at Melbourne Park on January 28, 2018 in Melbourne, Australia. (Photo by Clive Brunskill/Getty Images)

2019 Australian Open: Top Ten Surprise Predictions

MELBOURNE, AUSTRALIA - JANUARY 10: Roger Federer of Switzerland walks on stage with the Norman Brookes Challenge Cup during the Official Draw ahead of the 2019 Australian Open at Margaret Court Arena on January 10, 2019 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Australian Open Men’s Draw lines up Roger Federer and Rafael Nadal

MELBOURNE, AUSTRALIA - JANUARY 10: Andy Murray of Great Britain serves in his practice match against Novak Djokovic of Serbia ahead of the 2019 Australian Open at Melbourne Park on January 10, 2019 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images)

Andy Murray faces challenging opener at Melbourne Park

MELBOURNE, AUSTRALIA - JANUARY 08: Roger Federer of Switzerland plays a forehand shot during a practice session ahead of the 2019 Australian Open at Melbourne Park on January 08, 2019 in Melbourne, Australia. (Photo by Scott Barbour/Getty Images)

Roger Federer Remembers Coach, Prepares for Australian Open

AUCKLAND, NEW ZEALAND - JANUARY 02: Caroline Wozniacki of Denmark serves during her first round match against Laura Siegemund of Germany at the ASB Classic on January 02, 2019 in Auckland, New Zealand. (Photo by Hannah Peters/Getty Images)

Troubling loss for Caroline Wozniacki prior to Australian Open

PERTH, AUSTRALIA - JANUARY 05: Alexander Zverev of Germany celebrates a point in the mixed doubles match against Belinda Bencic and Roger Federer of Switzerland during day eight of the 2019 Hopman Cup at RAC Arena on January 05, 2019 in Perth, Australia. (Photo by Will Russell/Getty Images)

Top Five Men’s Singles Favorites for 2019 Australian Open

BRISBANE, AUSTRALIA - JANUARY 02: Rafael Nadal announces that he is pulling out of the tournament due to injury during day four of the 2019 Brisbane International at Pat Rafter Arena on January 02, 2019 in Brisbane, Australia. (Photo by Bradley Kanaris/Getty Images)

Rafael Nadal plans to be ready for Australian Open

BRISBANE, AUSTRALIA - DECEMBER 29: Kei Nishikori of Japn blows out candles on his birthday cake ahead of the 2019 Brisbane International at Pat Rafter Arena on December 29, 2018 in Brisbane, Australia. (Photo by Chris Hyde/Getty Images)

Happy Birthday to former world number four Kei Nishikori

HALLE, GERMANY - JUNE 23: Roger Federer of Switzerland plays a forehand in his half final match against Denis Kudla of the United States during day six of the Gerry Weber Open at Gerry Weber Stadium on June 23, 2018 in Halle, Germany. (Photo by Thomas Starke/Getty Images)

Can Roger Federer three-peat at the Australian Open?

NEW YORK, NY - SEPTEMBER 09: Novak Djokovic of Serbia reacts during his Men's Singles final match against Juan Martin del Potro of Argentina on Day Fourteen of the 2018 US Open at the USTA Billie Jean King National Tennis Center on September 9, 2018 in the Flushing neighborhood of the Queens borough of New York City. (Photo by Chris Trotman/Getty Images for USTA)

Why Novak Djokovic Should Win The 2019 Australian Open

LONDON, ENGLAND - NOVEMBER 14: Marin Cilic of Croatia celebrates match point during his singles round robin match against John Isner of The United States during Day Four of the Nitto ATP Finals at The O2 Arena on November 14, 2018 in London, England. (Photo by Julian Finney/Getty Images)

Can Marin Cilic win another slam beyond the US Open?

SINGAPORE - OCTOBER 28: Sloane Stephens of the United States reacts to a point against Elina Svitolina of the Ukraine during the Women's singles final match on Day 8 of the BNP Paribas WTA Finals Singapore presented by SC Global at Singapore Sports Hub on October 28, 2018 in Singapore. (Photo by Clive Brunskill/Getty Images)

Australian Open Could See New Champion in Women’s Singles

SHANGHAI, CHINA - OCTOBER 06: Roger Federer of Switzerland practise at Qi Zhong Tennis Centre on October 6, 2018 in Shanghai, China. (Photo by Kevin Lee/Getty Images)

Tennis Will See A New Roger Federer From Here On Out

MELBOURNE, AUSTRALIA - JANUARY 21: Nick Kyrgios of Australia plays a backhand against Grigor Dimitrov of Bulgaria in his fourth round match against Nick Kyrgios of Australia on day seven of the 2018 Australian Open at Melbourne Park on January 21, 2018 in Melbourne, Australia (Photo by Darrian Traynor/Getty Images)

Nick Kyrgios is training but is he ready for the 2019 ATP Tour?

MELBOURNE, AUSTRALIA - JANUARY 25: Angelique Kerber of Germany serves in her semi-final match against Simona Halep of Romania on day 11 of the 2018 Australian Open at Melbourne Park on January 25, 2018 in Melbourne, Australia. (Photo by Michael Dodge/Getty Images)

Angelique Kerber: breaking down her 2019 Australian Open chances

LONDON, ENGLAND - NOVEMBER 18: Novak Djokovic of Serbia stretches for a backhand in the final against Alexander Zverev of Germany during Day Eight of the Nitto ATP Finals at The O2 Arena on November 18, 2018 in London, England. (Photo by Julian Finney/Getty Images)

Way Too Early Predictions for the 2019 Australian Open

MELBOURNE, AUSTRALIA - JANUARY 27: Caroline Wozniacki of Denmark reacts after winning championship point in her women's singles final against Simona Halep of Romania on day 13 of the 2018 Australian Open at Melbourne Park on January 27, 2018 in Melbourne, Australia. (Photo by Chris Hyde/Getty Images)

2018 Australian Open: Looking back at Roger Federer and Caroline Wozniacki