Wolfsburg's teenage centre-back David Odogu is attracting interest from Arsenal, Brentford, Chelsea, and Leicester City.
The 17-year-old doesn't turn 18 until June and Wolfsburg want to keep him with the offer of a professional contract but his mature displays are drawing plenty of attention.
Brentford plan to sign another teenage talent Yunus Emre Konak from Sivasspor this week for £4million.
He can join from Wednesday - when he turns 18. Brentford have also asked about 18-year-old Real Betis winger Assane Diao.
The club are willing to spend this window to strengthen a number of positions but want players under the age of 24.