The 10 best deals of the summer...including Alexis Sanchez, Diego Costa, Lazar Markovic and Bojan Krkic

Which club has done the best bit of business this close season? Teddy Cutler picks the new signings set to make the biggest difference, whether they cost millions or arrived on a free

Alexis Sanchez poses with his new Arsenal shirt (GETTY IMAGES)

The new Premier League season begins at the weekend, after a busy summer of transfers for the clubs in England's top flight.

From former Barcelona wonderkid Bojan Krkic to Chelsea's "bargain" £32m signing Diego Costa, there are plenty of new players to look forward to watching, but which club has done the best bit of business since the end of last season?

Here, The Independent analyses 10 of the best deals this summer, whether they cost millions or arrived on a free.

To see the gallery of the 10 best deals this summer, check out the gallery below...

But what other new additions could be heading to the Premier League? The window closes at 11pm on 1 September.