Kirsty Wigglesworth/Associated PressTwo matches at Wimbledon's Centre Court were canceled by injuries on Tuesday due to retirements.Serena Williams was the one to lose, with her first set against Aliaksandra Snovich failing after she slipped on the grass.After a four-set match with Roger Federer, Adrian Mannarino had to retire.Mannarino was able to beat the legend champion in parts of the match but could not overcome the Swiss in the final set.Centre Court's first match featured the women's singles No. Carla Suarez Navarro pushed Ashleigh Barty, the No. 1 seed, to three sets.Barty won in three sets but it wasn't the easy match most top seeded Grand Slams have.Alexander Zverev and Daniil Medvedev lost a set in the combined men's singles draw, to kick off their respective tournaments. Federer will be the focus of both players' attention over the coming week and a half, as they all live in the bottom half.After a few matches were suspended on Tuesday due to darkness, the first round will resume Wednesday. Due to Monday's inclement weather, some players have not been able to make it onto the court.Men's singlesNo. 2 Daniil Medvedev def. Jan-Lennard Struff: 6-4, 6-1. 4-6. 7-6 (7-3)No. 4 Alexander Zverev def. Tallon Griekspoor 6-3,6-4, 6-1No. 6 Roger Federer def. Adrian Mannarino 6-4, 7-6 (3-7), 3-3, 3-6, and 6-2 (retired).No. 9 Diego Schwartzman def. Benoit Paire 6-3,6-4, 6-0No. 10 Denis Shapovalov, def. Philipp Kohlschreiber, 6-6, 6-3. 5-7.No. 14 Hubert Hurkacz def. Lorenzo Musetti 6-4, 7-6 (7-5), 6-2Sebastian Korda wins No. No.No. 22 Dan Evans def. Feliciano Lopez 7-6 (7-4), 7-2, 7-5No. 26 Fabio Fognini def. Albert Ramos Vinolas 7-6 (7-4), 6-2, 6-4Federer and Mannarino fought over four sets but the thrilling finale was cut short when Mannarino was forced to retire.Mannarino sustained the injury in the fourth set. He was unable, despite his best efforts to continue, to play the fifth set.After the third set, the Frenchman had the eight-time Wimbledon champion on the ropes. But, a slip on the moist grass that was soaked by rain Monday cost him the No. 6 seed.Federer, who had to withdraw from French Open due to a knee injury, can still use Tuesday's match as motivation despite the outcome.Federer didn't play to his usual high standards in the second and three sets. He will be facing Richard Gasquet in the second round, a French veteran.The weather was a major factor in the sixth-seeded Swiss's break, as many of his first-round matches have yet to be played.Federer would meet Medvedev in quarterfinals if he reaches the second round. On Tuesday, the second-seeded Russian defeated Jan-Lennard Struff in his own fight.After falling in the third set, Medvedev was able to avoid a fifth set by taking down Struff in a tiebreak in the fourth set.Zverev was the top player among the three top seeds on Tuesday. In straight sets, he defeated Tallon Griekspoor, a Dutch qualifier.Zverev could end up having the largest advantage in the bottom-half of the draw, since six seeds from the same section of his quarter have not yet played in London.The biggest upset Tuesday was produced by American Sebastian Korda. He defeated No. In four sets, he defeated No. 15 Alex De Minaur. He won the first two sets, and then tied the Australian in the fourth set.His win at Korda extended an amazing week for his family. His sister Nelly won the Women's PGA Championship. His sister Jessica finished 15th at that event.Singles for WomenNo. 1 Ashleigh Barty def. Carla Suarez Navarro 6-1, 6-7 (1-7), 6-1)Aliaksandra Ssnovich def. No. No. 6 Serena Williams 3-3 (retired).No. 8 Karolina Pliskova def. Tamara Zidansek 7-5, 6-4No. 13 Elise Mertens def. Harriet Dart 6-1, 6-3No. 14 Barbora Krejcikova, def. Clara Tauson, 6-1, 6-2No. No. Arantxa Rus 6-1, 6-1Marta Kostyuk def. No. No.No. 21 Ons Jabeur def. Rebecca Peterson, 6-1, 6-2No. 22 Jessica Pegula def. Caroline Garcia, 6-3.No. No. Nina Stojanovic 6-4, 3-3No. 26 Petra Martic def. Varvara Gracheva. 6-7 (3-7), 4-4, 6-3Tereza Martincova def. No. No. 28 Alison Riske. 6-2, 4-6, 6-1Williams was forced to leave the first set due to a similar slip shortly after Mannarino sustained his injury on Centre Court.Williams was given a standing ovation as he left the court at 3-3 in set one, after experiencing more pain from the slip on the baseline.Williams was the second top-10 seed to leave the women's draw within the first two days. No. Petra Kvitova, 10th seed, was defeated Monday.Barty nearly joined them but she won the tiebreak to win the second set 6-1 over SuarezNavarro.Barty could have her best chance of winning on grass with Williams out and Simona Halep recovering from an injury that kept her from playing before the tournament began.Barty has never advanced beyond the fourth round of Wimbledon in her singles career. Her resume includes a French Open victory and three consecutive quarterfinal berths at Australia Open.The French Open 2019 champion could face off against the Paris winner. No. 14 Barbora Krejcikova maintained her incredible form with a straight-set victory over Clara Tauson.Kiki Bertens' defeat in the first round by Marta Kostyuk made a potential Barty-Krejcikova match more likely.These three seeded women should have an advantage over the rest of the draw's top half. Belinda Bencic, Elina Svitolina and Bianca Andreescu remain unsigned women who are still waiting to be part of their first round matches.
