The versatile 19-year old started in central midfield in Wednesday night's 6-1 Capital One Cup win over Coventry City after making his Premier League debut at right-back against champions Manchester City last season.
Yennaris insists he is not bothered where he is deployed as long as he is given more chances to prove himself at the top following his first senior appearance for the campaign.
"I don't mind playing at right back or in central midfield, as long as I am playing," Yennaris told Arsenal Player.
"Obviously I had a taste last year so for this season my aim is to break through again. Obviously I had a chance against Coventry and hopefully I did alright.
"We know we have a big squad this year, and [the Capital One Cup] is a good opportunity for some of the younger players such as myself to get some game time to show what we can do."