LONDON — Arsenal has waited 20 years to get back into another Champions League final, and 22 years for another Premier League title. Now both are within reach, starting with the second leg of their semifinal at home against Atletico Madrid on Tuesday.The first leg ended 1-1 in Madrid last week after offsetting penalties for two teams looking for a first European Cup title. Arsenal will be hoping its home field advantage at Emirates Stadium makes the difference in the return.“After 20 years to be in this position again,” Arsenal manager Mikel Arteta said. “We are so hungry to get the game that we want (Tuesday) and go through to that final.”Arsenal routed Atletico 4-0 at home in the league phase in October, but expect Diego Simeone’s side to be a lot more solid defensively in the return to London.“I’m going to try to tell the team to play like they did in the second half (in Madrid),” Simeone said. “If it’s that easy it would be great. We have a lot of faith in what we’re doing.”Both teams have been boosted by injury returns as forward Julian Alvarez is expected to play for Atletico and Arteta said captain Martin Odegaard and forward Kai Havertz are both available.Atletico reached the final twice under Simeone …