By SABC Sport
1st May 2024
The 18-year-old Nigerian centre-back has been campaigning in the Bees' reserve side since his switch from Simoiben FC in August.
He was reportedly being chased by European giants Bayern Munich, Real Madrid and FC Porto but he opted for a move to England instead, where he was given the option of a permanent deal, should he do well.
And the young defender has now penned a four-year deal with Thomas Frank's side.
Frederick has already trained with the Bees' first team and was an unused substitute in league games against Manchester City and Tottenham Hotspur, along with a FA Cup third-round clash with Wolves.
The Nigeria under 20 international told his new club's website: "Signing permanently for Brentford is a great moment for me and my family and I want to thank everyone who started this journey with me.
"Neil [MacFarlane] and the rest of the coaching team have been very patient and supportive throughout this season and they have helped me become a stronger more confident player in the process.
"I want to repay the club's trust in me by continuing to do my best and pushing to even greater heights."