In general, clubs from the Champions League who join the Europa League are not as strong as Liverpool and Leverkusen, but the presence of these clubs can be a threat to them. I only consider Milan, Lens and Galatasaray who can pose a threat, but based on the consistent performances of Liverpool and Leverkusen, the presence of these clubs can improve their quality to go further in the Europa League.
The results depend on the end of the play-off round, after which a new round will begin. The more strong clubs that join the Europa League, the more excitement there will be for the audience when strong teams compete.
How do you know if that club is not very strong?? In my opinion, the Champions League groups stage is still considered a strongs club because they are able to compete there, maybe after fighting hard in the Champions League but not achieving satisfactory result, at least they can compete in the European League. At a glance, what you see is only the dominant clubs that you see. I know, however, the European League is still full of medium sized club who are able to put pressure on big clubs, so we cannot yet confirmed which clubs from the Champions League will be able to survive and take part in the European League qualifying rounds because the clubs that are relegated from the Champions League are also not clubs carelessly they were the selected club that could compete there but were beaten by big club in the EPL, Bundesliga and Spanish League, French League 1 and Italian Serie A.
After the play off rounds is finished we will looks at the clubs that will be a challenge for Liverpool and Leverkusen because currently both clubs are still doing their job well and with the presence of club from the Champions League and the groups stage we will see the potential for others clubs that can become a threat for them so for that we can enjoying match that will be even more interesting and no less interest like the Champions League.