Arsenal defender Shkodran Mustafi is delighted with the winning momentum they're producing.

Mesut Ozil bagged a second-half hat-trick after goals from Theo Walcott, Alexis Sanchez and Alex Oxlade-Chamberlain as the Gunners cruised to a 6-0 win over the Bulgarian Champions at the Emirates.

"That's [consistency] what makes the difference between great teams," he said, when asked whether they could keep up their current form.

"It's not about having all the one month, two month performances and then go down.

"It is a marathon and we have to fight until the end and if you are there, the most difficult thing is to stay up there.

"We have to try, we have to focus on the details, be concentrated, we need all the team, we need all the players and in the end, hopefully we will be successful."