The Spaniard helped Konta rise from outside the world’s top 100 into the top 10, and worked with her when she made a surprise maiden Grand Slam semi-final at the 2016 Australian Open.
Carril is also no stranger to Raducanu – he has worked closely with the LTA and even gave the Bromley teenager some pointers on improving her serve when she trained last year.
If the pair have a successful trial period in Transylvania and Linz, Raducanu could have one less thing to worry about if she decides to appoint the Spaniard full-time, and can start her off-season with a coach she knows will be around for longer.
While she can’t boost her ranking at the events, the world No 24 is also currently entered into two exhibitions which will give her a couple more chances to test herself in a match at the Champions Tennis event in London’s Royal Albert Hall, and at the Mubadala World Tennis Chapionships against Belinda Bencic, who she beat en route to the US Open title.