David Raya 'should have saved three' but thrilled to help Arsenal past Porto in Champions League

Arsenal beat Porto 4-2 on penalties to make the Champions League quarter-finals; last-16 tie had ended 1-1 on aggregate after Leandro Trossard's first-half strike saw Gunners beat Portuguese side 1-0 in return leg at the Emirates; David Raya was the Guners' hero after saving two spot kicks