But once tipped for greatness the England International was never able to live up to his full potential due to a combination of injuries and lack of first-team opportunities.
Substitute Cenk Tosun forced a late save out of Cech as Everton looked to set up an enthralling finish, but Arsenal held on to continue their winning ways and pick up a first clean sheet under Emery in the process.
However, the former Sevilla boss - who won three Europa Leagues in a row during his time in Spain - is not underestimating the importance of the Premier League.
After his reported €22 million (A$35.46 million) move from Bayer Leverkusen in July, Leno made his Arsenal debut in his side's 4-2 UEFA Europa League win over Vorskla.
"It is clear that we have a very, very competitive team to do that - I am confident in my team".
#WhyDidntIReport Confessions On Sex Assaults Mushrooms In Wake Of Trump Tweet
If any survivor of sexual assault would like to add to this, please do so in the replies. Davis also addressed accusations that Ford's story lacks key details.
"The Europa League is very important, it's a title and every title for us needs the best performances.
To do one work collectively to give them the best possibilities in the attacking moment to score".
Former Arsenal man Theo Walcott was also guilty of squandering a good chance for the visitors, failing to get enough on his attempted chip over Cech when racing in behind, and Everton were so almost punished in the closing stages of the first half.
Aubameyang made way for Alex Iwobi as the game headed towards its final 20 minutes with the home side and control and Everton's spark having deserted them.
"I think he's done okay since joining Everton, he's been one of their better players out of the new signings and has got a few goals", said Nicholas. "We need to impose ourselves on the game". The Premier League is the first priority for us, that gives us the biggest credibility. Some players choose not to and that's fine, but it's just who I am - celebrate scoring goals, it's a great feeling.