Tottenham announced the signing on Friday of midfielder Yves Bissouma from Brighton for a reported fee of £25 million ($30 million), giving manager Antonio his third signing of the transfer window.
The highly rated Mali international shone as Brighton achieved their best-ever Premier League finish of ninth last season.
Bissouma has signed a four-year deal and will join new arrivals Ivan Perisic and Fraser Forster at the London club.
"The transfer is a very good one for the club and player," said Brighton manager Graham Potter.
"Yves has shown his undoubted ability and been an important player for us during his time with us.
"Now he has a new challenge with Tottenham, including the opportunity to play Champions League football, and everyone at the club wishes him well."
Leipzig recruit Schlager
RB Leipzig on Friday signed Austria central midfielder Xaver Schlager from Bundesliga rivals VfL Wolfsburg after actioning an release clause in his contract.
According to reports, Leipzig will pay around 12 million euros ($12.5 million) for the 24-year-old, who has signed a contract until 2026.
"RB Leipzig are one of Germany's top teams and are consistently in Europe, they have now won their first major title with the German Cup," said Schlager in a statement.
"I'm really pleased I can continue my development here."
The Austrian made 81 appearances, scoring three goals, for Wolfsburg, who he joined in 2019 from Leipzig's sister club Red Bull Salzburg.