Nick Kyrgios beat Mackenzie McDonald 3-6, 6-3, 6-4 and secured his maiden win since October 2022. Emma Raducanu also advanced to the second round and will face Emma Navarro.

2021 US Open champion Emma Raducanu has had an eventful day. Raducanu won her first-round match at the Miami Open. Following her first-ever win in Miami, she fired her coach of 14 days, Vladimir Platenik. BREAKING: Emma Raducanu has parted company with her coach Vladimir Platenik after just 14 days 🚨 pic.twitter.com/FlFmZgidyM

Emma Raducanu raced into the second round of the Miami Open with a dominant 6-2 6-1 victory over Japanese wildcard Sayaka Ishii. It was a first win for British No 2 since a traumatic incident involving a stalker at the Dubai Open last month, and follows a first-round exit in Indian Wells, the first tournament of the ‘Sunshine Double’.