title: 2018 TT Pro League
context: The 2018 TT Pro League season is the 20th season of the TT Pro League, the Trinidad and Tobago professional league for association football clubs, since its establishment in 1999. A total of ten teams are contesting the league, with North East Stars the defending champions from the 2017 season.[1]
question: How many teams are in the TT Pro League?
answers: ten