It means a lot if the Tigers keep it going. It means less if they don’t. Perhaps a lot less. Thursday’s winning single by Alex Avila was a galvanizing moment for the Tigers in that it handed them a dramatic 3-2 triumph over the Yankees, one of the teams they are battling for a playoff berth. “He throws a lot of sliders,” Avila said of Shawn Kelley, the pitcher off whom he reached the wall in right with his single. “I took a shot I’d get one early on.” And, of course, as with any walk-off hit, whether it’s a home run or single, there was a celebration. With all the fun that’s expected of a celebration. The players pound each other. The fans, when the game is won at home, go wild. And a couple players team up to grab the nearest cooler to drench the hero. The water carriers this time, as they’ve been before, were Nick Castellanos and J.D. Martinez. They like doing it. And, yes, they got Avila good, but with nothing colder than he’s accustomed to. “I take ice baths every day,” Avila said, when asked how cold the water felt. He doesn’t usually, however, take them at 4:02 p.m., which was upside-down time for the cooler. The Tigers had every reason to celebrate. The game had been tied since the fifth inning. Neither team had led by more than a run, and it’s not as if a ton of games separate the two in the wild-card race. If the Yankees had won, the margin between the two would have been one game. And even with the Tigers taking two of the three games in the series, the difference is just three games.