FC Twente defender Douglas has reportedly emerged as a January target for Newcastle.
The Brazilian centre-back has scored twice in 21 appearances for Twente this season, and has impressed with a number of composed displays in the Eredivisie.
According to the Chronicle, Newcastle are one of a several clubs tracking the 23-year-old as Alan Pardew scours the market for defensive reinforcements.
The Toon boss is reported to have sent a scout to compile a report on Douglas during the recent Europa League clash with Fulham.
Injury to Steven Taylor has led Pardew to explore the option of bringing another central defender to St James' Park during the winter, and Douglas is one of a clutch of candidates.
Pardew, in fact, said last week that Newcastle owner Mike Ashley has been encouraging him to bolster at the back, so recruitment in the New Year looks increasingly likely.
Also linked with Newcastle in recent weeks have been wantaway Chelsea defender Alex and Blackburn star Chris Samba.