Calciatori Challenge 2008/2009 is an Italian collectible card game published by Panini in April 2009, built around the Italian top-flight football league for the 2008 to 2009 season. Panini, headquartered in Modena, has been the dominant Italian football sticker and card publisher since the 1960s. The Calciatori Challenge series ran parallel to Panini's established Calciatori sticker album line, adapting the same player and club imagery from Serie A into a competitive card-game format. The 2008 to 2009 season was notable as the year Inter Milan clinched the Serie A title. As a tournament-season product the print run was finite, and the game has since gone out of print. Detailed gameplay rules and full card checklists for this specific season edition are sparsely documented online outside Italian collector swap sites such as laststicker.com.
Source: www.laststicker.com/cards/panini_calciatori_2008-2009/