The picture above is emblematic of the problems AC Milan has had in defense the last few years.
It comes from midway through the second half of April's Derby della Madonnina, the twice-yearly intercity clash between Milan and Inter that, in this period of struggle for the two clubs, is currently the biggest day on their respective calendars. With the game scoreless, center back Philippe Mexes—the highest paid player on the team—poked the ball past Diego Lopez and into his own net.
In this instance, Mexes was spared the ultimate embarrassment of an own goal in a derby when Inter's Rodrigo Palacio committed a foul in the buildup play, but it was yet another moment for Milan fans to bury their faces in their hands and wonder how a team with such a great defensive legacy has gotten things so wrong at the back.