Northern California has no shortage of strong rivalries, and those rivalries have delivered some epic games in recents weeks. (sportstarsmag.com)
That's why strong rivalry can mean that resistant pests supersede their susceptible conspecifics more quickly. (sciencedaily.com)
A strong rivalry between Coq & Elneny, and then someone to fight with Cazorla before replacing him in two seasons time sounds rather good to me. (justarsenal.com)