It is unexpected to see such a pair of opponents in 1/32, it is unlikely that Arsenal and Manchester United will make a lot of rotations, but they will definitely be, as the teams have difficult matches in more important tournaments ahead. And this increases the chances of goals for both sides, especially since Manchester United can surprise in matches with top clubs, despite their terrible form. So we don't think that if Arsenal go further, they will do it in regulation time.
Prediction: Manchester United double chance. We recommend the “X2” bet, odds 2.36