Sheffield Wednesday see off Derby County to land Charlton's Morgan Fox
He’s the second player to arrive this month, following Callum McManaman - who has joined on loan from West Brom - to S6.
Fox, 23, came through the ranks to The Valley and actually made his debut for Charlton at Hillsborough in the FA Cup in 2014.
The Wales Under-21 defender has made 116 appearances for Charlton, including 30 this season.
Fox - who will wear the No 43 shirt - is cup-tied for Sunday’s FA Cup third round trip to Middlesbrough, so could make his Owls debut against Huddersfield Town next weekend.