Southampton have signed Argentine midfielder Carlos Alcaraz from Racing Club, the South American club announced on Monday.
The Buenos Aires-based team added that Premier League club Southampton have paid €13.65 million for the 20-year-old, plus a 15 per cent sell-on fee.
Alcaraz, who made his debut in 2020, has scored 12 goals with six assists in 83 games for top-flight Racing Club.
Alcaraz joins Croatia striker Mislav Orsic as struggling Southampton's January transfer window signings.
Saints are bottom of the Premier League standings and host Manchester City in the League Cup quarterfinals on Wednesday.