Southampton have signed forward Sadio Mane from Red Bull Salzburg and defender Toby Alderweireld on loan from Atletico Madrid.
Real Madrid have confirmed that they have signed striker Javier Hernandez from Manchester United on a season-long loan deal.
Atletico Madrid have agreed to buy Italian forward Alessio Cerci from Serie A outfit Torino for an undisclosed fee.
Napoli have confirmed the signing of David Lopez on a five-year deal from Spanish La Liga outfit Espanyol after he completed a medical on Sunday.
Real Sociedad manager Jagoba Arrasate hopes for a reversal of fortunes when his team play against Real Madrid at the Anoeta on Sunday.
Real Madrid have reportedly earmarked Javier Hernandez as a potential loan signing, should they miss out on Radamel Falcao or Alvaro Negredo.
Atletico Madrid's title defence shifted into second gear when the team beat Eibar 2-1 at the Vicente Calderon on Saturday.
Real Madrid manager Carlo Ancelotti is under no illusions about the enormity of the task his side faces ahead of Sunday's trip to Real Sociedad.
Barcelona manager Luis Enrique believes that a considerable amount will hinge on the performance of his attacking unit during the fixture against Villarreal.
West Ham have announced the signing of former Arsenal midfielder Alex Song on a season-long loan from Barcelona.
Everton have been drawn in a testing group as they make their return to Europe, while Tottenham will have to navigate past Besiktas.
Bayern Munich have confirmed that they have completed the signing of Real Madrid's Spanish midfielder Xabi Alonso.
Cristiano Ronaldo says Real Madrid are targeting nothing less than a successful defence of their Champions League crown.
Manchester City were dealt arguably the toughest draw in the Champions League, facing Bayern Munich, CSKA Moscow and Roma in Group E.
- Mustafi: Valencia are hungry
- Jimenez adapts at new club
- Velazquez signs for Atletico
- Alonso set for Bayern medical
- Liverpool still keen on Song
- Spurs confirm Fazio signing
- Adriano given Barca all-clear
- Juve open to Ogbonna offers
- Barcelona sign Douglas
- Di Maria: I never asked to leave
- Di Maria seals United switch
- Mascherano signs new deal
- Beto sidelined for four weeks
- Luiz reveals top clubs snub
- Spurs to meet Fazio clause
- Ancelotti expects improvements
- Di Maria set for record move
- Eight-game ban for Simeone
- Ancelotti: Khedira staying put
- Bartomeu: We've broken rules
- Berbatov: James is special
- Atleti not seeking Ronaldo action
- Ancelotti: Di Maria said goodbye
- Khedira prepared for Real exit
- Simeone relishing cup win