By Samuel Meade Bukayo Saka refused to pick his perfect opponent heading into the last eight of the Champions League after Arsenal advanced in dramatic circumstances. It is 14 years since the Gunners were last in the quarter-finals of Europe’s top competition but a penalty shootout victory over Porto ensured they overcame their first-leg deficit. Arsenal trailed 1-0 going into Tuesday night’s game but Leandro Trossard’s first-half strike levelled the tie. That was the end of the goals though and it eventually required penalties with David Raya proving the hero as he saved twice to ensure a 4-2…