Arsenal are allegedly regarded as the current favourites to secure a deal for Chelsea winger Willian.
With the Blues and the playmaker having failed to agree terms over a fresh contract, the Brazilian is expected to leave Stamford Bridge on a free transfer later in 2020.
Although the 31-year-old has a close affinity to Chelsea, journalist Jorge Nicola has suggested that the Gunners are the frontrunners for his signature.
Nicola told ESPN: "Arsenal are a little ahead today, but everything is still open."
Willian has previously indicated that he and his family are settled in London - a reason behind his demands for a three-year deal.
Liverpool are also said to be monitoring the situation ahead of the next window.