Madrid, April 29 -- Atletico Madrid and Diego Simeone have regularly tasted the sting of disappointment, even in what is the club's golden age. They host Arsenal on Wednesday in the Champions League semi-finals chasing redemption after their crushing Copa del Rey final defeat little over a week ago. Tens of thousands of Atletico fans travelled down to Seville only to go home empty-handed, just as they did in the 2014 and 2016 Champions League finals against bitter rivals Real Madrid. Atletico have never won Europe's premier competition, also beaten in their other final appearance in 1974. They can take a first step towards a fourth final against Mikel Arteta's side this week, in which they are celebrating the club's 123rd anniversary. In th...