Swansea City will sign Conor Gallagher on loan after Chelsea recalled the midfielder from Charlton Athletic.
Gallagher, 19, scored six goals in 26 appearances for Charlton after joining on a season-long loan deal last August.
But the England Under-21 midfielder was recalled by Chelsea to Charlton's disappointment and will move to South Wales until the end of the season.
Gallagher was part of the England Under-17 side which won the World Cup under Swansea head coach Steve Cooper.
Promotion hopefuls Swansea have already signed two of Gallagher's Under-17 World Cup-winning team-mates this month in Rhian Brewster and Marc Guehi.
Striker Brewster has signed on loan from Liverpool for the rest of the season, while Chelsea defender Guehi has joined on a loan deal which could run until the summer of 2021.
Gallagher has been linked with a number of clubs but the Cooper connection has again paid dividends for the Swans.
Swansea had not expected to do much business in the January transfer window for financial reasons.
But the loss of striker Sam Surridge - who was recalled by Bournemouth at the start of the month - changed the financial picture at the Liberty Stadium.
Second-choice goalkeeper Kristoffer Nordfeldt has left Swansea for Turkish side Genclerbirligi, and it could be that more fringe players move on this month.