Some new names are reportedly set to enter the race for Middlesbrough target Joe Bryan.
Bryan, currently of Bristol City, is expected to be highly-coveted this summer after an impressive 2017/18 season at Ashton Gate.
And with just a year remaining on his current deal at the club, the left-back is expected to leave this summer.
An asking price of £6m has been suggested in some quarters, while Newcastle and Leeds are among the clubs rumoured to be interested.
Tony Pulis' side are also thought to be keen and have been heavily linked with Bryan throughout the summer - although it was confirmed in the Bristol Post last week that no concrete bids had been submitted.
But now German side RB Leipzig are set to ramp up their interest in the defender, according to the Daily Star.
The same report suggests that fellow Bundesliga sides Mainz and Augsburg are also looking to seal Bryan's signature.