Mat Ryan was back on the bench for Valencia despite having kept a clean sheet in the La Liga outfit's 4-0 Copa del Rey win on Wednesday.
And the Socceroo and Asian Cup hero watched on as his team lost 2-0 at Real Sociedad.
Aussie great Mark Schwarzer also sat on the bench in Leicester City's 2-2 FA Cup draw at Tottenham.
Meanwhile in Scotland, playmaker Tom Rogic came on in the 74th minute of Celtic's 3-0 triumph at Stranraer in the Scottish FA Cup.
And in-form Apostolos Giannou's goal was not enough for Asteras Tripolis in the Greek Super League on Sunday (Monday AEDT).
Giannou scored in the 63rd minute to level the match away to Panaitolikos but the hosts would score again nine minutes later to win 2-1.
It was the 25-year-old striker's 13th goal of the season in all competitions.
Gallery: Caltex Socceroos camp in pictures
The Caltex Socceroos are looking ahead to November's twin matches in a positive mindframe after comfortably accounting for Kuwait 4-0 in a friendly earlier this week. Australia's impressive win came as reward for the hard work done during a Dubai training camp in the lead-up t
Progress report: Mark Milligan
With the AFC Asian Cup appearing quickly on the horizon, we’re delivering weekly scouting reports on some of our Caltex Socceroos playing abroad. This week the spotlight is on Mark Milligan, an experienced member of the national team who has made a flawless start to life in Eu
Caltex Socceroos meet young Aussie ‘Playmakers’ in the UAE
The Caltex Socceroos took time out after training to meet with some young Australian fans in the United Arab Emirates last week ahead of Monday’s solid 4-0 win over Kuwait in Kuwait City. The young Australians, who live in the UAE, are part of the AFC Asian Cup UAE 2019’s Play
‘An amazing story’: Patrice Evra leads social media tributes to Mabil, Deng debuts
There was a lot to like about the Caltex Socceroos win over Kuwait on Tuesday (AEDT) but arguably the biggest highlight was the international debuts of youngsters Awer Mabil and Thomas Deng. The pair were both second-half substitutes and combined on the right flanks, with Mabi