Arsenal 'missing solidity in the middle of the park'

[Getty Images]Arsenal were missing "solidity" and "organisation" against Paris St-Germain, says former defender Johan Djourou.With the likes of Thomas Partey and Jorginho missing on Tuesday, the Gunners struggled to take charge in the centre of the pitch against a PSG midfield of Joao Neves, Vitinha and Fabian Ruiz.Djourou was part of the Arsenal side that last played in a Champions League semi-final in 2009 and, speaking to BBC Radio 5 Live, said: "With Champions League semi-finals, the details