Pope Francis blesses a child as he arrives to lead mass for an estimated 170,000 Catholics at the Zayed Sports City Stadium on February 5, 2019 AFP

A worshipper reacts as Pope Francis holds a mass at Zayed Sports City Stadium in Abu Dhabi, United Arab Emirates, February 5, 2019. REUTERS

This handout photo released by the Vatican Media, shows Pope Francis leading mass for an estimated 170,000 Catholics at the Zayed Sports City Stadium on February 5, 2019 AFP

Pope Francis arrives at Zayed Sports City Stadium in Abu Dhabi, United Arab Emirates, February 5, 2019 REUTERS

Pope Francis holds a mass at Zayed Sports City Stadium in Abu Dhabi, United Arab Emirates, February 5, 2019 REUTERS

Pope Francis holds a mass at Zayed Sports City Stadium in Abu Dhabi, United Arab Emirates, February 5, 2019 REUTERS

Pope Francis holds a mass at Zayed Sports City Stadium in Abu Dhabi, United Arab Emirates, February 5, 2019 REUTERS

This handout photo released by the Vatican Media, shows Pope Francis freeting the crowd ahead of leading mass for an estimated 170,000 Catholics at the Zayed Sports City Stadium on February 5, 2019 AFP

This handout photo released by the Vatican Media, shows Pope Francis freeting the crowd ahead of leading mass for an estimated 170,000 Catholics at the Zayed Sports City Stadium on February 5, 2019 AFP