I didn't say that Atalanta has qualified for next season's UEFA Champions League; what I said was that the win Atalanta had against Lecce has given them hope of qualifying for next season's UEFA Champions League because Juventus is leading them by one point and there are two remaining matches for the Serie A season to end. For a long time, Juventus has been struggling to win their matches in the Serie A, which has put them in this condition, and if they continue with such performances, Atalanta might overtake them in the Serie A table. Juventus next match is against Bologna, and they might likely drop points against Bologna, which will give Atalanta an advantage to enter the top four of the Serie A table if they win their match in Serie A.
I think Atalanta will definitely qualify for the UEFA Champions League next season, now they are ranked 5th and for this season there are 5 teams that qualify from Serie A and also Atalnta is 6 points ahead of Roma who is ranked 6th so there is no possibility again for Roma to be able to catch Atalanta.As for the competition for UEFA Champions League tickets for next season, I think everything is over, there are 5 teams that have confirmed getting these tickets, namely Inter MIlan, AC Milan, Bologna, Juventus and Atalanta.
I would say the Atalanta team has already qualified for the Champions League. The team is now fifth in the table. Atalanta team is 5 points ahead of Roma. The Roma team is not in good form right now. They have lost points in their last three matches. Meanwhile, Atalanta are in very good form. So it is highly unlikely that Atalanta will lose the last two matches and Roma will win both matches.
I think Roma will be happy to qualify for the Europa League. Because Roma has very little chance of surviving in a competitive platform like the Champions League. So Roma will fight for the Europa League title next season as well. Moreover, the performance of the team is quite messy at the moment. It is very important to make the team more stable.