Arsenal legend Thierry Henry and Mikel Arteta shared a joke as Arsenal overcame Porto in the Champions League on Tuesday evening. Arsenal secured passage to the quarter-finals of the Champions League for the first time in 14 years when they beat Porto by virtue of a penalty shootout. The Gunners have never won Europe’s elite club competition before. The closest they came was reaching the final in 2006, when Thierry Henry was still a part of the squad. However, the north London club will feel that they stand a fair chance of triumphing in the tournament this time around. Whilst they aren’t favo…