For the current situation, Sevilla does not have much chance, because the peak of the group must be held by Arsenal, and the second position is held by PSV, and we can see that PSV is seen from the history of their match in a very good performance so it will be quite difficult faced PSV, and the lens team historically at the beginning of this season did not have a good fate and he fell down in the lower line of his domestic league, but it must be noticed that the Lens in the previous season got a good increase and was at the seventh level of the standings, they did not Consistent but able to pray for a short time.
Sevilla are in Group B. And I wouldn't say every team in Group B is strong. As Arsenal are in form, they are pretty sure to top the table in Group B. And the other two teams are PSV and Lens. PSV is a strong enough team. And this team is capable of performing well in the Champions League as well. However, if Sevilla perform well, it is possible to get points against PSV. On the other hand, the Lens team is now off form. They are not playing well in Ligue 1. The overall condition of their team is very weak. So Lens doesn't seem to have any chance of qualifying for the knockout rounds. And so, if Sevilla want to go to the knockout round, they must play well and win against PSV. I think Sevilla will be able to qualify for the knockout round if they win the two matches against PSV. But it will be much more difficult for Sevilla's players.
Arsenal stand a good chance in that group irrespective of how you put it. Let's judge by their domestic league and where they are currently playing, Sevilla hasn't win a single match and even if it's still early, they are in relegation currently zero point and no match has been won. Lens has played 4 matches and has not won any won any, they draw 1 though. Only PSV have a good place in their domestic league. They are currently number two while Arsenal is in number 5, the only difference is that there are many teams with similar points with Arsenal that share the same points with Arsenal but I believe as we progress, everything will be clear and if there is any team I look forward in making it out of the Champions League group B is Arsenal and PSV.