Argentina Under-20 international Alejo Veliz has completed a permanent transfer to Tottenham.
Burnley striker Wout Weghorst has joined Bundesliga club Hoffenheim on a season-long loan.
Chelsea could face punishment for breaching the Premier League's financial regulations during Roman Abramovich's ownership.
Tottenham have secured the services of Wolfsburg defender Micky van de Ven with a six-year contract.
Newcastle have completed the signing of Southampton defender Tino Livramento for an undisclosed fee.
Former Everton defender Yerry Mina has been snapped up by Serie A club Fiorentina.