6 times Wenger said Arsenal wouldn't sell a player but sold him anyway

6) Thierry Henry - 2007

Thierry Henry spent eight seasons at Arsenal and became the club's record goalscorer

Following Arsenal's move from Highbury to the Emirates, most of the Invincibles squad was gone. Players such as Patrick Vieira and Robert Pires had moved on while Dennis Bergkamp had retired. The only ones remaining were Jens Lehmann, Kolo Toure, Gilberto and the club's biggest star Thierry Henry.

The seniors helped Wenger bring through a group of youngsters who would form the core of the side in the coming years as Arsenal looked to pay off their massive debt following the stadium switch. But Henry himself was restricted to just 17 games that season as injuries to his foot, groin and stomach ruled him out for weeks or months at a time.

Barcelona were keen on signing him in the summer of 2007 and speculation was rife that the 2006/07 season would be his last in an Arsenal shirt. But Wenger was quick to dispel any doubt.

"It is more down to imagination than anything else, Thierry Henry will be here next year." - Wenger in May 2007

But Henry had other plans. The departure of David Dein, the former vice-chairman of Arsenal who had signed a number of players in Wenger's early years, hit him hard and even Wenger's future at the club was unclear.

Although a move to Barcelona was not one to pass up, the club's all-time leading goalscorer also felt he needed to move on to allow the youngsters to grow.

"The fact that I was captain and my habit of screaming for the ball, they would sometimes give it to me even when I was not in the best position. So in that sense it was good for the team that I moved on." - Henry

Henry signed for Barcelona for a fee worth £16.1m and teamed up with Lionel Messi and Samuel Eto'o to win the treble (and eventually the sextuple).