If Indian pilgrims can visit Pak, why not tennis players: PTF

After the venue for the India-Pakistan Davis Cup tie was shifted from Islamabad, PTF has written a letter to the ITF, asking if thousands of Indian Sikh pilgrims can visit Pakistan, then what could be the problem for a 10-member-strong tennis team. The pilgrims are set to visit Pakistan to celebrate the 550th birth anniversary of Guru Nanak Dev.