2. Yaya Sanogo
The acquisition of Yaya Sanogo sums up the ugly side of Wenger’s reign as an Arsenal manager. Before his capture, Wenger was full of praise for this unknown youngster. Little did he know he was about to sign a young prospect with little experience in top-flight football. It was a dreadful mistake in hindsight.
Sanogo’s stature and physicality was perhaps the reason why Wenger was so optimistic of him. However, Sanogo had zero experience in the professional league, having played in the French league, barely finishing a whole season. The Gunners sent him on loan to Crystal Palace, where he struggled with injuries and lack of opportunity to get game time.
It would, however, be fair to say that the French striker still has time on his side as the 25-year-old looks to get his career back on track with Toulouse FC.