Arsenal legend Robert Pires believes new manager Unai Emery is the best signing the club have made in the close-season.
Emery arrived at Emirates Stadium in May as the replacement for Arsene Wenger after the Frenchman's 22-year spell at the helm came to an end.
He has brought in five new players, with Uruguay international Lucas Torreira and 19-year-old Matteo Guendouzi joining last week, following the arrivals of Bernd Leno, Sokratis Papastathopoulos and Stephan Lichsteiner.
However, Pires told Sky Sports : "The best signing for me is Unai Emery, the manager.
"Of course I believe in the players, and especially the new players.
"But for Emery it's very important to start very well. He knows he's at a big club, and has a lot of pressure, but I think he has a big character and spirit.
"He won in Spain. He won in France. He has a lot of experience and I hope for him and Arsenal that he is successful with the club."
Emery's Arsenal begin the new Premier League season with a trial by fire, facing defending Champions Manchester City on August 12, followed by a trip to London rivals Chelsea on August 18.