Diego Costa hit the ground running on his Premier League debut against Burnley on Monday, scoring with his first ever shot in the English top flight.
Manchester United winger heads out on loan to Sporting Lisbon as part of the deal.
All the latest news, views and transfer rumours from the Emirates Stadium...
John Arne Riise has been searching for a new club this summer after his Fulham contract expired, and the former Liverpool left-back claims Aston Villa could be a potential destination.
One of the financial world's largest ever mergers was effectively unwound on Tuesday as BHP Billiton said it was demerging key assets from its $190bn (£114bn) mining conglomerate – triggering another huge payday for the banks.
Newcastle United manager Alan Pardew has hinted at further signings before the September 1 transfer deadline.
Manchester City's Joe Hart thinks Liverpool could be title contenders after last season's impressive showing.
Having made his Premier League debut for Chelsea on Monday night against Burnley, goalkeeper Thibaut Courtois looks set to sign a new five-year deal.
Hull City manager Steve Bruce has admitted that he is likely to ring the changes for his side's Europa League qualification tie against Lokeren on Thursday.
Here's the Arsenal side to take on Besiktas this evening, kick-off from Turkey at 19:45 GMT.
Much was said about Steven Gerrard's deeper role in the run-up to the tournament, but does Roy Hodgson really understand how to get the best out of the Liverpool man?
Former Arsenal hero Thierry has talked up Wilfried Bony, of Swansea City and Cote d'Ivoire, previously linked with Everton, Liverpool and Dortmund.
19 products that look amazingly good in ads but not in real life ...