I've LOVED this manga so far. I'm aware what I'm going to say here might be an unpopular opinion, but seriously, this is just bad writing.
How the fuck is Isagi not in the top 6 after all that he's shown so far? Even if you discount his achievements, look at the ranks of the dudes barring Nagi and Rin that made it to the top 6. 23, 33, 69 and 111?! These ranks were decided PURELY on an individual basis before the team phase (scoring goals against that robot keeper). Not only that, these dudes couldn't even clear the team phase quickly, with some of them even losing multiple times. And now you're telling me the dude who ranked 111 on the basis of individual skill is now rank 2 just because he scored a solitary goal? His own teammate (Buddha) was questioning if he was that good here ffs. And are we just going to forget that Isagi had a HUGE part in Rin's goal? And also the fact that Rin considers him a rival... I get the fact that they want #111 to be the new adversary to Isagi but this is just laughably stupid.
Well, can't help it now. Hope the story gets better from here.