Up for sale is an original, 100% genuine 2005-2006 Chelsea FC player training shirt manufactured by Umbro. Crest: Special 1905-2005 Centenary embroidered badge on front. This clean white design with royal blue trim features the special 100-year anniversary club crest details and was worn by the squad during training sessions in the iconic back-to-back Premier League title-winning season under José Mourinho.