For a man that seems to wear a smile wherever he goes, it came as a big surprise to many when Santi Cazorla's Arsenal colleagues revealed he looked the most disappointed they had ever seen him.
Given the fact that Arsenal surrendered a lead to slump to a disappointing 4-3 opening-day home defeat to Liverpool would probably not have helped matters, although that was not the main reason for his disappointment.
While Arsene Wenger continues a frantic late search for a new defender, in order to ease their defensive crisis - as exploited by Liverpool - the Frenchman's abundance of midfielders at his disposal has caused the Gunners boss a selection headache.
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According to The Mirror, the Spain international believes he had a good pre-season with the north London club and as one of Arsenal's most senior players, deserved to start against Jurgen Klopp's Reds on Sunday afternoon.
However, that was not to be the case, as Wenger selected Francis Coquelin, Mohamed Elneny and young Nigerian Alex Iwobi - even ahead of £30 million summer signing Granit Xhaka - to face Liverpool.
Cazorla was reportedly "devastated" at being overlooked, although the fact that highly-rated Xhaka saw just 30 minutes, and that Jack Wilshere did not feature at all, should have helped to console the 31-year-old.
Nonetheless, the Spaniard is in Wenger's thoughts for Arsenal's visit to Premier League champions Leicester City on Saturday, although, as expected with a squad packed with midfielders, Wenger is going to continuously be disappointing midfielders throughout the season.
But Cazorla is keen not be one of those left on the sidelines, and despite the fact Wenger will be keen to further develop the likes of Iwobi, who made his breakthrough at the Emirates last campaign, and Xhaka, who is in his first season in the Premier League, the Spaniard will hope his experience will aid his cause for selection.
Can Santi Cazorla still have a big impact in midfield for Arsenal this season, despite Arsene Wenger bringing in Granit Xhaka from Borussia Monchengladbach? Give your opinion in the comment box below.