The Yankees’ Tyler Austin slid into second base too high and hard for the Red Sox’s liking Wednesday night. The Sox responded later in the game with a couple of high, hard fastballs aimed at Austin. One of them connected. Fisticuffs ensued.Yes, it was another episode involving the unwritten rules of baseball. (Oh, don’t roll your eyes: Youknow this stuff matters to fans.) It was pretty basic: Action, reaction, escalation, no admi sions of guilt afterward.FOSTER: Baseball’s dumbest unwritten rules What if the written rules of baseball (and one rule in particular) were actually to blame for the brawl? That was the thought of a former player who knows the Yankees-Red Sox rivalry inside and out:That slide before the rule was changed would have not have been in question IMO. The rule is what caused the retaliation and fight. #EliminateTheSlideRule Kevin Youkilis (@GreekGodOfHops) April 12, 2018Youkilis’ a se sment seems slightlyoff, even thoughYoukilis PLAYED THE GAME (an acknowledgement written louder for the Twitterverse). The guy Austin slid into, Brock Holt, didn’t let it . . . slide, rule or no rule. Holt clearly didn’t like how Austin went through the bag and clipped his ankle.This slide from Tyler Austin led to the dugouts clearing in Boston.#Yankees-#RedSox rivalry is alive and well. Mark Suleymanov (@TheMARKOut1) April 12, 2018PHOTOS: Ugliest, weirdest brawls since 1976Brock Holt said he probably said something he shouldn’t have to Tyler Austin, but I wanted him to know it was a bad slide. I think everyone on the field knows that. Scott Lauber (@ScottLauber) April 12, 2018Even a Hall of Fame infielder knew that, and he also knew what should have (and did) come next:U slide in with ur spikes up and catch a piece, ur gonna get thrown at young fella. That’s how baseball works. It polices itself, whether people like it or not. That will never change. Love the spirit in both squads though. #Redsox/Yankees Chipper Jones (@RealCJ10) April 12, 2018For the record, Red Sox first-year manager Alex Cora, himself a former infielder, seemed to be closer to Youkilis’ thinking in his postgame comments.Cora felt Austin slide was impermi sible based on rule although rule does require a double play attempt and that was ruled not to be one. Cora did indeed attempt a challenge. Cora stopped short of indicating slide was dirty, did not go that far Evan Drellich (@EvanDrellich) April 12, 2018Well, skip, several of your players sure saw it as dirty, so you might want to get everyone on the same (unwritten) page.