UPDATE: for 2 weeks Dan Church will be off for Paternity leave but Dan B will merge both groups. Please book onto this course if you attend either Junior Yellow ball groups. Thanks for your understanding. A great way for players aged 11-18yrs to progress from Mini Green tennis: full size rackets, yellow (adult) balls and full-sized courts. Enables players to develop a rounded game, learning a range of techniques and tactics. These sessions are still primarily games based but now with a focus on the kids taking more ownership of their learning.