Arsenal manager Unai Emery has warned his camp that defeat to Everton will be a huge blow to the Gunners chances of making top four in the Premier League.
Emery's men travel to Goodison park and if they rack up all three points from the encounter, it would propel the Gunners back to third place.
"I am very realistic. We are in a good moment . It depends on Sunday as well, these three points, but now each match is very important for that," Emery said, according to BBC.
"If we win, we are third. If we don't win, we can't hold this position," he said.
The ex-Paris Saint-Germain handler remains confident that if his boys turned up on the occasion they will secure maximum points against the Merseyside club.
"It depends if we are efficient on the pitch if we are — for 90 minute — competitive, then I think we can achieve these three points.
"But it's a long way to go and we need to be positive, but also realistic and the reality is that Sunday is a very big challenge and a very big opportunity now. We are going to continue in our way and Sunday is the first," Emery said.
Though Arsenal sit fourth on the table with a game in hand, the difference between third and sixth placed Manchester United is just two points.
This highlights the significance of the Gunners facing defeat at this point of the season.
Earlier, Legit.ng reported that German football star Mesut Ozil has been declared as an ozone player at Arsenal after missing 22 Premier League games for the Gunners since November 2017.
The former Real Madrid star has played just three Premier League games outside of a 100-mile radius of Arsenal in the last 17 months.
Ozil joined Arsenal from Real Madrid in 2013, and in February this year, he hit the headlines after missing his 100th Arsenal game.
According to the report on UK Sun, statistics show that Mesut Ozil is reluctant to play outside London despite earning £350,000-a-week.
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