Hockey India's decision to drop three players, including veteran midfielder Manpreet Singh, from the list of probables for the upcoming FIH Pro League season stemmed from disciplinary issues during the team's tour of South Africa in December. Sources said a serious case of indiscipline surfaced during the tour, following which Manpreet, Dilpreet Singh and goalkeeper Krishan Bahadur Pathak were omitted from the probables' list. The Pro League season will begin next month in Rourkela. Manpreet had co-captained the Ranchi Royals team to the Hockey India League final, and his performance in the tournament was commendable. The India leg of the FIH Pro League is scheduled from February 10 to 15 in Rourkela.