London, May 15 -- Emma Raducanu has reunited with coach Andrew Richardson - who helped guide her to the US Open title as a teenage qualifier - on a permanent basis.

Raducanu and Richardson are formally working together in Strasbourg in preparation for the WTA clay-court tournament, the final warm-up event before the French Open.

The pair have agreed to a full-time partnership, meaning Raducanu intends to be guided by the52-year-old Briton at Wimbledon and beyond.

Raducanu initially linked up with Richardson earlier this month at the Ferrer Tennis Academy in Spain, where he has been the tennis director for several years, for a short training session in preparation for her clay-court season, according to BBC Sport.

"I'm grateful to have r...