A mid-tournament recap of everything that's happened in the first few rounds of the Miami Masters and a mini-quiz on Ash Barty after her retirement announcement.ATP Miami1:00: Venue change from Crandon Park to the Hard Rock Stadium.5:36: Andy Murray continues his first-round win/second-round loss record from this year but shows encouraging signs going forward.Upsets10:01: Nick Kyrgios emphatically defeats Andrey Rublev.11:50: Francisco Cerundolo upsets Reilly Opelka and Gael Monfils.Drama14:50: Jenson Brooksby’s racket throw.16:31: Jannik Sinner saves match points in his first two matches. 19:30: Thanasi Kokkinakis saves match point against Diego Schwartzman with a stunning forehand pass.The Ridiculous19:49: Three absurd shots from J. J. Wolf, Nick Kyrgios and Alexander Bublik.21:17: Carlos Alcaraz defeats Marin Cilic in an encouraging match for Cilic fans.Marbella22:52: A stacked Challenger draw in Marbella with Dominic Thiem and Stan Wawrinka making their comebacks.Ash Barty24:04: Ash Barty retires from professional tennis.25:46: A mini-quiz on Ash Barty.1. How many singles titles did Ash Barty win in her career? (1)2. Ash Barty has made six Grand Slam doubles finals. How many has she won and who was her partner in four of those finals? (2)3. Barty won a bronze medal at the Tokyo Olympics last year. Who was her partner? (1)4. Barty won the WTA Finals once defeating Elina Svitolina. What was the year and what was the score in the final? (2)5. What was the last WTA-1000 title of Barty’s career? (1)WTA MiamiUpsets30:30: Irina-Camelia Begu defeats Aryna Sabalenka.32:56: Ann Li defeats Annet Kontaveit.34:14: Katerina Siniakova defeats Emma Raducanu.36:37: Beatriz Haddad Maia defeats Maria Sakkari.Introducing38:28: Linda Fruhvirtova announces herself to the tour with wins over Elise Mertens and Victoria Azarenka.40:11: Differences between Linda and her sister Brenda.Our Picks41:22: Quick picks for tonight’s matches.