Atletico Madrid have warned Arsenal intermediaries that Thomas Lemar will only leave for "important money".
AS says Arsenal must make an 'important' offer if they are to sign Lemar.
New Gunners boss Mikel Arteta is believed to be looking for a winger.
Nicolas Pepe has underperformed so far, and doubts persist over the future of Pierre-Emerick Aubameyang.
Arsenal have been encouraged by the fact that Lemar is not a regular starter under Diego Simeone.
However, Atletico would only sell the 24-year-old if Arsenal splashed the cash in an 'important' offer.