Chelsea have loaned striker Mason Burstow to Championship side Sunderland for the rest of the season.
He featured in three games this season, including a first Blues start in the Carabao Cup in midweek.
"It's a huge club with a great head coach [Tony Mowbray] and big expectations," Burstow said.
"I'm here to bring goals to the team and keep supporters on the edge of their seats. I can't wait to walk out at the Stadium of Light for the first time after the international break."
Former Welling player Burstow will not be registered in time for Saturday's lunchtime kick-off against Southampton.