Joel Campbell and Yaya Sanogo
Campbell and Sanogo were both on target for Arsenal.Getty Images/Michael Regan

Arsenal manager Arsene Wenger says both Joel Campbell and Yaya Sanogo will remain at the Emirates Stadium this season after impressing in the friendly win over Benfica.

Sanogo netted four times at the weekend while Campbell – making his first appearance for the Gunners - also scored after enjoying a decent World Cup with Costa Rica.

However, with Alexis Sanchez, Olivier Giroud and Theo Walcott set to lead the Arsenal attack this season opportunities for Sanogo and Campbell might be limited, but Wenger has no plans to send either player out on loan.

"Campbell has done very well," Wenger said. "I like the way he plays, he's good on the ball, creative and collectively as well he has a good balance between individual skill and collective attitude - that's not easy to find. I want to keep him.

"Sanogo was injured for basically two years before he came to us," the Arsenal boss added. "If you look at his goal scoring record before he got injured, it is quite frightening.

"For a while when he came back last season, he could not score. You could see when he scored the first goal today, suddenly they came raining.

"I especially liked the third goal he scored, it was really the goal of a striker of quality. He has a big future here, or course, he is 21. He has something of Adebayor. He is strong, a strong body, similar strengths [to Adebayor], but as well technical skill.

"A headache is when they don't play well. We have some decisions to make when everybody plays well, that's true. But when everybody plays well that's what we want.

"They need to play of course but they need to play here. Sanogo came last year on a free and we worked very hard for six months with him and from January onwards he was slowly getting better. Now that we have worked very hard with him, we want him to stay here."

Though Arsenal have made four high-profile additions this summer, the club's activity in the window has gone cold despite the need for a defensive midfielder.

Real Madrid's Sami Khedira has been heavily linked with a move to north London, but Wenger has denied making any offer for the German World Cup winner with the summer transfer window having less than a month to run.