Sunderland's six-day pre-season tour of Portugal, in association with UK Asbestos Specialists Limited, is coming to an end.
The Black Cats have been put through intense daily training sessions as well as two games against Benfica B and Belenenses as they prepare for the 2019-20 League One campaign.
Our cameras have followed every step, so click play in the panel below and check out one of the latest sessions.
