Emma Raducanu fought through a fit of tears and breathing difficulties but could not avoid a 7-6, 6-4 defeat to Karolina Muchova in Dubai. On Sunday, Raducanu had snapped a four-match losing streak in the previous round by beating Maria Sakkari,

Concern over a man who’d exhibited fixated behavior caused Emma Raducanu to approach the chair umpire in tears and take an unscheduled break in her second-round match at the Dubai Championships.