"As of next season clubs will be required to have a squad named of up to 25 players, of which no more than 17 can be over the age of 21 and not home grown," "The definition of home grown is trained for three years under the age of 21 by somebody in the English and Welsh professional system. "Clubs will have to declare their 25 at the end of August when the window shuts and then again at the end of January." Players who are aged under 21 are eligible over and above the limit of 25 players per squad. http://www.skysports.com/story/0,19528,11671_5560131,00.html