Sign up and learn to play tennis with TW Tennis at Kneller Gardens! TW Tennis Youth Red ball tennis is aimed at our youngest players who are looking to get outside, be energetic and learn how to become young tennis players! The classes are great fun, really easy to follow and delivered by one of our experienced TWT coaches. The class runs for 12 weeks for the Summer term. All equipment can be provided each week for players to take part but each player must wear suitable footwear and clothing.