Meet The Unstrung Team

Between them they have over 50 years of stringing and customising experience. Stringing for ATP and WTA professionals like Andy Murray, Maria Sharapova, the Bryan Brothers and many more. They each offer their own unique set of skills and to find out more about them continue reading below...

Nikki Roenn

Located in Marbella, Spain. Nikki has been stringing and customising rackets for over 10 years. He has experience stringing and customising while traveling on tour and for players competing at tournaments like Wimbledon and the 2012 Olympics. Besides stringing, Nikki has also been competing on tour for many years and also works as a traveling coach and hitting partner for players like, Roger Federer, Garbine Muguruza, Genie Bouchard, Jurgen Melzer and many others. You can find out more about Nikki here.


Darren Powell

Located in our host store, The Racket Centre in Wimbledon, London. Darren has more than 20 years of experience in stringing, customising and selling rackets. Darren has strung for top 10 players on both the ATP and WTA tour and was one of the official stringers for the Paralympic games. Darren is also certified by the UKRSA. With his vast knowledge and experience he can help you with any racket queries you may have. 



Francisco Ruiz

Located at Gosling Tennis Centre in the UK where he is a Senior Performance coach. Fran offers his skills as a professional stringer to Gosling's top tier adult and junior performance players who include, British no. 2 Aljaz Bedene, Ed Corrie and Dan Cox. Fran has over 15 years of racket customising and stringing experience and is also professionaly certified by the UKRSA.