Arsenal midfielder Santi Cazorla has said that he hopes teammate Alexis Sanchez can maintain his positive form this season.
The Chile international has scored 10 goals in 17 appearances for club and country this season.
Gunners manager Arsene Wenger has previously suggested that Sanchez needs rest, but Cazorla believes that the attacker has "no limits".
"He's getting better every day, every year," Cazorla told Arsenal Player. "There are no limits for him. The ambition he has right across the board is incredible and that enables him to improve with every passing day.
"We're lucky to have Alexis with us - I've always said that. We hope he keeps that level up. He's one of the best players in the world. Let's hope he maintains his form for the whole season because we will certainly be a lot stronger with him playing like he is right now."
Arsenal are currently second in the Premier League table, on equal points to leaders Manchester City.