Arsenal host FC Porto for the second leg of their Champions League last 16 tie, so here is everything you need to know including how to watch the game live on TV in the UK. The Gunners trail the Dragoes 1-0 on aggregate following the first leg on February 21 thanks to a 93rd-minute strike from Galeno. Porto stole an advantage deep into stoppage time with a superb strike into the top of David Raya’s goal after Gabriel Martinelli turned over the ball. Porto punished Arsenal for starting slowly and also offering next to nothing in the final third. Despite Mikel Arteta’s side enjoying 65% of the p…