Alex Oxlade-Chamberlain is convinced about the quality of Arsenal teammate Yaya Sanogo.
The young Frenchman could start Wednesday's crucial Champions League qualifier against Besiktas after Olivier Giroud was ruled out with a foot injury.
"I think Yaya is a very good player," Oxlade-Chamberlain said. "He's a young lad like myself and he's got [progression to make] like I do.
"I think at the moment he's shown his raw ability. In the Emirates Cup he scored four great goals and as a striker, especially last season, I think he got into some really good positions and it just didn't fall for him in terms of scoring goals.
"He's a really good lad as well. He works very hard on and off the pitch and I don't think he would be at a club like Arsenal if he wasn't a good talent. I'm sure the boss would tell you the same thing."
