The Germany international scored the Gunners second goal on the day and was selected as man of the match by Sky Sports.
“During the warm-up I kept focusing on that corner and took five shots after the other,” Ozil was quoted as saying in the Standard.
“The practise went well and that’s why I thought during the game that it had gone well in the warm-up so I would surprise the goalkeeper.
“That’s how I scored the goal, and I was really pleased with it.”
The Germany international is expected to start for Arsenal on Monday following his impressive performance against Crystal Palace last weekend. The 26-year-old provided the assist for the Gunners opening goal.
Özil has a total of one assist in two league appearances for the Gunners this season. Özil enjoyed a trophy-laden pre-season winning the Asia Barclays Trophy, Emirates Cup and Community Shield.
Arsenal sit in 11th place with four points from their opening two games in the Premier League.