https://youtu.be/QaY5HmtTjKA

Rough Translation ⤵️ ▪️Question: What is the ruling on Loving non-Muslim team-mates and hating Muslim footballers from opposing teams, and is this Kufr? ▪️Sheikh Fawzān ḥafidhahullāh: This is from the harms of football; establishing walā wal barā off this useless matter. This is from the harms of these games. It is not permissible to love the disbelievers and to hate the Muslims due to them being on the opposing team. This was the objective of the Kuffar behind establishing these clubs; they sought to sow in the hearts of the youth walā wal barā for other than Allah's sake. This is from the negative effects of this. So the Muslims must beware of this. They wanted to preoccupy them from that which is of benefit to them and their Ummah, and distract them from beneficial knowledge - worldy as well as religious. They merely wish to preoccupy them with these games, so that they become useless members of society...yes, playing -if it's void of any Islamic contraventions- is permitted, but if there are any contraventions involved, then it becomes Ḥarām. And from the greatest contraventions is what you mentioned; establishing walā and barā on the basis of this... So this is absolutely impermissible, and it is something that emenates from a Muslim.