Leandro Trossard of Arsenal dribbling by Nahuel Molina of Atletico Madrid. Getty Images Arsenal and Atletico Madrid drew, 1-1, in the first leg of their Champions League semifinal at the Metropolitano Stadium last week, meaning it’s all to play for on Tuesday. Whoever wins on Tuesday will advance to the final to take on the winner of Bayern Munich and Paris Saint-Germain in Budapest on May 30. The betting market believes Arsenal is the likelier winner, as the Gunners are -334 favorites to advance and -154 to win Tuesday’s semifinal within 90 minutes. Arsenal vs. Atletico Madrid odds, prediction The first leg of this fixture was filled with controversy, but the most important note was that Atletico Madrid was able to unlock Arsenal’s rigid defense. Los Colchoneros scored one goal from the penalty spot, but they created 2.21 expected goals, three big scoring chances, and took 18 shots. Those are encouraging numbers against arguably the best defensive side in Europe. Atletico Madrid manager Diego Simeone.…