With a week to go in the transfer window, Arsenal fans are still hoping for some new arrivals.
However, any acquisition will be a gamble. It's impossible to guarantee a signing's success. Even Arsene Wenger, who has a terrific eye for a player, has made some dodgy decisions. He's brought in players who weren't good enough, and he's sold players who were.
In this piece, we rank the five worst summer transfer deals of the last decade at Arsenal.