PSV Eindhoven are thought to be interested in signing Chelsea target Lucas.
The Gremio midfielder is being linked with a move to the Premiership champions after wowing scouts this season.
PSV hope to come to an agreement with Chelsea to take the 19-year-old on loan if the Stamford Bridge club sign the starlet.
The Dutch champions already have fellow Brazilian Alex (pictured) on a temporary basis from Chelsea.
During his time at the Philips Stadion, Alex has become one of the top defenders in Europe.
Chelsea could be keen for a similar outcome with Lucas and therefore may be open to the possibility of a loan deal.
Juventus and Atletico Madrid have also been linked previously with a move for Lucas.
Meanwhile, PSV are also rumoured to be interested in Nacional's Uruguayan international Gonzalo Castro.