Arsenal have taken a significant step toward signing Newcastle United midfielder Bruno Guimarães, agreeing personal terms with the Brazilian star, according to ESPN FC's Transfer Talk.

The agreement on personal terms marks a key milestone in what would be one of the most high-profile transfers of the current window. Guimarães has been one of the Premier League's most influential midfielders since joining Newcastle United, and his potential move to Arsenal would reshape the Gunners' engine room considerably.

A full transfer between the two clubs has not yet been confirmed, meaning Arsenal and Newcastle United must still reach an agreement on a fee before the deal can be completed.