World Tour Soccer Challenge Edition WTS known simply as World Tour Soccer in the United States is the PlayStation Portable version of the popular PlayStation and PlayStation 2 game This Is Football TIF created by SCEE s London Studio and released in 2005 WTS featured very similar gameplay as TIF but was not a direct port of its forerunner as a number of areas were enhanced particularly the challenge mode referred to in its title WTS has emulated TIF s success by selling over half a million copies in PAL territories As a result of its success a sequel to WTS was developed by SCEE and released as World Tour Soccer 06 in 2006