Arsenal are talking the talk after PSG loss but can they walk the walk in Paris?

PSG’s Désiré Doué is sandwiched between Mikel Merino and Jakub Kiwior (right). Merino says of Arsenal: ‘You can never give up on us.’Photograph: Justin Setterfield/Getty ImagesThe fighting talk comes as standard. Arsenal are down after Tuesday night’s 1-0 home defeat against Paris Saint-Germain in the Champions League semi-final first leg but not out.“This team … you can never give up on us,” Mikel Merino says. “Because I thin