Striker Rumarn Burrell has joined Kilmarnock on loan until the end of the season, subject to international clearance.
The 20-year-old joins Boro team-mate Zach Hemming who is also on loan at the Scottish Championship Club.
It’s the second loan spell of Burrell’s Boro career, having had a stint with Bradford City last season, where he featured twice.
Burrell scored four goals for in 15 appearances for our Under-23s last season and he also made his senior Boro debut as a late substitute in the FA Cup third round at Brentford.
The player has previous senior experience with Grimsby Town having made four substitute appearances for the Mariners in 2018/19 before joining Boro the following summer.