Goals from Helder Costa and Éder gave Portugal the lead, and Bruma provided an impressive goal of his own as Portugal defeat Scotland 3-1.
Helder Costa opened the scoring on his international debut for an experimental Portugal, who made 10 changes.
China's struggles in the build-up to January's Asian Cup finals continued on Saturday when Italian coach Marcello Lippi's side drew with India.
Brazil had scored 16 goals in their four previous wins against the Saudis but the home side matched the visitors, particularly in midfield.
Former U.S. international Brian McBride breaks down the USMNT's loss to Colombia and the direction of the team as the coaching search continues.
Hajime Moriyasu continued his winning start to life as Japan coach as the four-times Asian champions beat Panama 3-0 in a friendly on Friday.