Stoke City boss Mark Hughes says they must keep a close eye on Arsenal striker Alexis Sanchez.
Hughes has been impressed by the former Barcelona striker.
"He (Sanchez) is an outstanding player. He's a world star and known for his football ability on many continents.
"Given the fact he's making such an impression early on tells you want a talent he is.
"He's a top player and they have paid a premium for him, but that's what you have to do to get players who make an impact."
