Alexander Isak’s goal in the 12th minute proved to be the difference between the two teams as the Gunners labored at St. James’ Park.

With Mikel Arteta’s team now seven points behind league leaders Liverpool, Arsenal’s loss cast doubt on their ability to win the championship.

The England international, though, seems certain that Arsenal has what it takes to make things better.

The 23-year-old, who led Arsenal as captain on Saturday, wrote a note to his teammates on Instagram.

Following Arsenal’s loss against Newcastle, Bukayo Saka issued a message to his teammates.

‘We stick together!’ Saka posted in his Instagram story on Saturday night.

Arsenal lost to Bournemouth on the road last month, then drew 2-2 with Liverpool at home before falling to Newcastle.

Saka has frequently contributed significantly even in spite of Arsenal’s struggles this season.

In nine Premier League appearances, the 23-year-old star has three goals and seven assists.

Wednesday night marks Arsenal’s return to action when they travel to play Inter Milan in the Champions League.

On November 10, they will travel to play Chelsea in the Premier League.

Saka insisted that it is important for Arsenal to stick together following their defeat

Arteta admitted that Arsenal ‘deserved to lose’ against Newcastle.

The Arsenal boss said: ‘We deserved to lose today. I thought we started really well and were really dominant. We didn’t defend the box well enough, credit to them. They scored a great goal with a good ball.

‘Then the game changes and you start to play a different game. You have to adapt and we didn’t do that well enough. I am very frustrated.

‘We got dragged into a game they are looking for constantly and we couldn’t play the game that we wanted.

‘We had two big chances — Mikel (Merino) had a big one, Declan (Rice) had a big one. We lacked answers.’