Middlesbrough look set to make a move for the ADO Den Haag winger this summer.
The 24-year-old winger has enjoyed an excellent season with the Dutch club, scoring seven goals and contributing ten assists in what has been a standout campaign from the former Ajax man.
Leeds United, Sheffield Wednesday and Derby County are also interested in winger who is out of contract at the end of the season having signed for ADO Den Haag in 2016 from Ajax for €200,000.
Becker is reportedly unlikely to sign a new deal with the Dutch side prompting the interest in a host of clubs.
Boro are believed to have been watching Becker, who represented the Netherlands at youth level, last season as they looked to bolster their attacking options.