Sources close to the agents industry have informed CaughtOffside that Newcastle United are among a number of Premier League clubs, including Manchester City, Aston Villa, Manchester United, and Arsenal, who are closely monitoring Eintracht Frankfurt's German-American left-back Nathaniel Brown. Both Manchester City and Arsenal are reportedly considering opening talks in the near future to strengthen their options on the left side of defence. The 22-year-old is contracted with the Bundesliga club until 2030, and the absence of a known release clause could place Frankfurt in a strong negotiating position. According to Transfermarkt, Brown currently has a market value of €22 million.