2023-2024 Chelsea Training Shirt (Pitch Blue) - Kids. The Chelsea 2023-2024 Kids' Training Shirt. With details specially designed for rising soccer stars, this slim-fitting, streamlined model will let you shine on the pitch. Anti-perspirant technology wicks away heat to let your talent shine.PersonalisationName & Number - Customise your jersey with the name and number of your favourite Chelsea player or even your own name. We can print name in the same style worn by the players.