Aaron Ramsey has praised Alexis Sanchez for his energetic performances since joining Arsenal in the summer transfer window.

Sanchez has quickly found his form since moving to North London from Barcelona, scoring six goals in the early stages of the new season, and his determination to contribute all over the pitch has impressed Ramsey.

"Sanchez is up for the fight as well, he's not just there when he's got the ball," the Welsh midfielder told The Mirror. "Defensively, he wants to work hard for the team and realises that's important.

"That's a great quality to have as an attacking player to realise there is work to be done defensively when we haven't got the ball."

Ramsey and Sanchez could both start Arsenal's Champions League clash with Anderlecht on Wednesday.