Emma Raducanu has been without a full-time coach since sacking Andrew Richardson last summer, but has now been given the green light to enlist the help of Mark Petchey

It’s not often that a tennis player leaves the court as a winner after a disappointing three-set defeat, but that was the story for Emma Raducanu at the Miami Open. Roll the clock back to the start of March and Raducanu’s mind was not focused on runs to the latter stages of WTA 1000 tournaments for so many reasons.