Cardiff-based Chris Lewis is heading to South Africa as part of the Great Britain over-35 team in the International Tennis Federation (ITF) Young Seniors World Team Championships. Lewis, who is head performance coach at Cardiff Metropolitan University in association with XL Tennis, and is originally from Neath, was selected on the basis of his performances at county events, team tennis finals and National Premier League Finals. As a first-year veteran, eligible because he turns 35 this year, he brings some…