1 Nick Kyrgios, of course, whipped out a tweener during his three-set win over Ivo Karlovic.2 The Aussie also channeled his inner Lleyton Hewitt.3 Bethanie Mattek-Sands had an unforgettable birthday, upsetting Elina Svitolina and hitting a 131 mph ace.4 Roger Federer wasn't in the mood to act out the flex emoji for the Miami Open GIF ads.5 Fabio Fognini celebrated with a chicken dance on his way to the Miami semifinals.6 The local iguanas weren't totally loved by everyone as Kiki Mladenovic jogged away from the four-legged critter.7 At Miami's Muscle Beach, Svetlana Kuznetsova shined as an interviewer and showed off her own guns.8 Jack Sock reached the singles quarterfinals, and shone in doubles with this quick reaction in a win over the Bryan brothers (with Nicholas Monroe).9 Alexander Zverev was in all sorts after dropping the first set against Kyrgios.10 Zverev and Kyrgios still had respect, and laughs, for each other during their entertaining three-set battle.