Italian Serie A set to return at 18 teams from 2019-2020 season?

Italian Serie A will be back at 18 teams in 2019-2020.

This is the process to arrive at 18 clubs in three years, as reported by La Gazzetta dello Sport.

Season 2017-2018: one promotion from A2 and one relegation

Season 2018-2019: three promotions from A2 and one relegation.

Season 2019-2020: two promotions from A2 and two relegations.