Arsenal starlet Krystian Bielik has joined Birmingham City on loan.
The 19-year-old Polish defender will spend the rest of the season with the Championship club.
Bielik arrives at St Andrew's having played twice for Arsene Wenger's first team this season, both in the EFL Cup.
Former Legia Warsaw young gun Bielik will wear the number 31 shirt at Blues and will be eligible to play in Saturday's home fixture against Fulham.