Atletico Madrid coach Diego Simeone said the team's new signing Antonio Adan had "got off on the right foot" - after the new rojiblanco goalkeeper had a decisive role in his team's International Champions Cup penalty shootout victory over Arsenal in Singapore.
Despite Arsenal's loss here there were positives for Emery, with the performance of Emile Smith Rowe a particular highlight.
With the scores tied at 1-1, it took penalties to separate last year's Europa League semi-finalists, with Ainsley Maitland-Niles the only Gunner to score as Adan earned the plaudits.
The win means Atletico now occupies the 7th position on the log with 3 points from one game, while the Gunners occupies the 9th position with no point from one game.
The Gunners play Emery's former club Paris St-Germain in the same stadium on Saturday afternoon, while Atleti face the French side two days later. I'm very happy with his work on the pitch but it's not only today, it's every day.
Looking beyond his curly hair and obvious resemblance to Chelsea's David Luiz, Arsenal's new signing Matteo Guendouzi could force himself into Unai Emery's plans sooner than later.
The 29-year-old endured two frustrating seasons at Old Trafford, making just 26 Premier League starts after joining from Borussia Dortmund in July 2016 for a fee in the region of £27million.
But it was Smith-Rowe who stole the show with his 47th-minute equaliser after Luciano Vietto had given the La Liga side the lead with a stooping header from an Angel Correa cut-back four minutes before half-time.
'Tactically, we've been working very hard, there's a lot of information to take on.
"I am very happy with the work of the lads", Simeone said.
The Spaniard said: 'Aaron is an important player for us, and the contract is one thing for the club and the player.
"He is starting today because his performances are good in each training session", said Emery.
"Historically, Arsenal have worked with young players to give them the chance to work with the first team, for them to show their quality in each match".