As a Cubs fan I agree, the Cubs-Brewers rivalry has felt stronger now that the Bears being good last season lit a serious fire under the Bears-Packers rivalry. So until that season starts, that rivalry has bled into Cubs-Brewers. I don't pay much attention to basketball, but I haven't seen a similar thing happen with a Bulls-Bucks rivalry. Also, the Crosstown Classic (Cubs vs. White Sox) just wrapped up, a proxy war between the wealthier north side Cubs and the working class south side Sox. Cubs ultimately won the series 2-1, and it was a pretty sweet series! I feel like this is the main Cubs rivalry tbh.
PCA joined the 30-30 club for the second consecutive season with a walk-off homer in the 10th.
Cubs and Sox fans threw hands in the bleachers
But they achieved peace, bonding by chanting "Green Bay sucks", reminding them of the true enemy