Arsenal need to make six signings of the world class for Unai Emery during the summer transfer window so as to allow the Gunners to perform better in the next season, says Sky Sports pundit Paul Merson.
"Defensively they need everything," Merson told Sky Sports. "From a goalkeeper, as Petr Cech was great but isn't now, centre-halves and a holding midfielder.
"The full-backs aren't really good enough either so they've got a lot of work to do.
"Arsenal need to tighten up and become hard to beat which, based on what he did at Sevilla, Emery can do.
"Emery knows the Spanish market well so I think he'll be looking there, and to France, but I can't see them bringing in any English players.