It’s a sentence that would hardly be believable at plenty of points in recent memory, but a Week 9 rivalry showdown between Kansas and Kansas State could shape the College Football Playoff race. That is, at least, what ESPN analyst Greg McElroy thinks. It might not be the game getting the biggest billing that weekend — Missouri traveling to Alabama might take the cake — but McElroy thinks beyond likely playing a key role in shaping the Big 12 race, the winner of this in-state battle could be in a great spot to compete for a College Football Playoff spot. “Missouri at Alabama is the headliner, …