CHICAGO — Wrigley Field has been called a lot of things over the years: a cathedral, a landmark, a haunted house, a beer garden, a bleeping playground for “the other 15 percent.”This season, you can also call it the home of Chicago’s wildest roller coaster south of Six Flags. Though I wouldn’t call it an amusement park right now, because nothing is entertaining for the Chicago Cubs.On a steamy Wednesday at Wrigley, the Cubs’ 9-5 loss to the Milwaukee Brewers epitomized the highs and lows of this season-long, stomach-dropping ride.Nausea, elation, more nausea, an injury — it really had it all.Who should win NL MVP?Joe CrisalliCubs hitters knocked around Jacob Misiorowski for five runs in the first two innings, only to go hitless from Ian Happ’s one-out single in the third inning until Pete Crow-Armstrong’s single with two outs in the ninth.Cubs fans cheered as Crow-Armstrong, the presumptive NL MVP, walked twice against Misiorowski, the presumptive Cy Young favorite, in the first two innings, and red-hot Alex Bregman drove him home twice with a line-drive screamer home run and a two-run single up the middle. It was looking like the Cubs’ night.But Cubs fans also booed as David Peterson gave up two runs in the first inning, and they jeered erstwhile closer Daniel Palencia when he gave up an insurance run in the seventh. They groaned in the ninth inning when a Christian Yelich comebacker hit right-handed reliever Jacob Webb in his right forearm. It was then looking like the other kind of night for the Cubs.Webb’s X-rays were negative, which is a good thing. But negative also describes the state of the Cubs (78-62) right now as they try to hit their way out of a late-summer swoon.After starting with loud contact and ovation-inducing walks against “The Miz” in the first two innings, Cubs hitters barely made a peep at the plate against him and five Milwaukee relievers over the final seven innings. The Brewers’ bullpen gave up just one hit and one walk in five innings.The Cubs lost three series in a row coming into this one and need to win Thursday night to salvage a split. When you score 17 runs in one game and beat up on the best pitcher in the NL in another, you’d hope for better results.But let’s be honest, Thursday’s game doesn’t matter for the division race, as the Cubs have essentially ceded the NL Central to Milwaukee, which has a nine-game lead. What’s important is they need to hold off the Philadelphia Phillies in the wild-card race. They are one game behind the Phillies for the right for home field in the best-of-three series, and the Cubs’ beleaguered pitching staff has been downgraded to embattled.