Atletico Madrid suffered a 1-0 loss to A-League side Melbourne Victory on their Australian pre-season tour in Geelong on Sunday.
Paris Saint-Germain produced an impressive performance to beat Leicester 4-0 in the International Champions Cup in Los Angeles on Saturday evening.
Goals from substitutes Divock Origi and Roberto Firmino earned Liverpool a 2-0 win over AC Milan in the International Champions Cup on Sunday.
Julian Green scored a first-half hat-trick as Bayern Munich humbled Inter Milan 4-1 in the International Champions Cup on Saturday.
An under-strength Real Madrid side beat Chelsea 3-2 in the International Champions Cup in Michigan on Saturday night.
Gillingham's friendly at Leyton Orient was abandoned on Saturday after Gills' summer signing Lee Martin suffered a serious ankle injury.
Barcelona picked up a 3-1 victory over Celtic in their opening International Champions Cup fixture at the Aviva Stadium, Dublin.
Gillingham summer signing Lee Martin suffered a serious injury in Saturday's pre-season friendly at Leyton Orient, causing the fixture to be abandoned.