It was at some point during the fourth inning Tuesday night that Atlanta broadcaster Tom Glavine, who knows a thing or two about crafty pitching, remarked that Chicago Cubs lefty Justin Steele was giving “a clinic on pitching.” Indeed, the former George County High star shut out the powerful Braves through five innings, retiring eight in a row at one stage, and carried a six-run lead into the sixth. Then Kevin Pillar crushed a leadoff homer — the Braves’ 300th of the season — and everything changed — at Truist Park and elsewhere. The Atlanta crowd woke up and so did the Braves, who knocked out Steele, rallied to win 7-6 — aided greatly by a two-out, two-run fielding error in the eighth inning — and delivered the Cubs a crushing blow in the National League playoff race. On a night when Philadelphia secured the top wild card seed in the NL, the Cubs’ loss also clinched the Central Division title for Milwaukee. In addition, the Cubs fell to third in the wild card standings, a game back of Arizona and just a half-game ahead of Miami. Steele, an All-Star this year and a darkhorse Cy Young Award candidate, went 5 1/3 innings vs. the Braves and was charged with three runs. He has been stuck on 16 wins since Sept. 4. He is 0-2 in his last four outings as his ERA has risen to 3.06. He could get one more start, in the season finale. … The Phillies — and Laurel native Bobby Dickerson, their infield coach — partied hard at Citizens Bank Park after a walk-off hit in the 10th inning against Pittsburgh. They’ll host a wild card series next week. … The Brewers, who had already clinched a playoff berth, celebrated their division title with much more fervor, despite having lost their game Tuesday at American Family Field against St. Louis. They will also host a wild card series. P.S. Southern Miss product Matt Wallner hit a 463-foot grand slam for playoff-bound Minnesota at Target Field, his second slam and 13th homer of 2023. “One of the furthest balls I’ve ever seen hit. Ever. That’s 20-something years of professional baseball,” Twins manager Rocco Baldelli told The Associated Press after Minnesota’s 11-3 win over Oakland. … Ex-USM star Walker Powell celebrated a Southern League pennant after Tennessee, the Cubs’ Double-A team, beat Pensacola 10-3 to sweep the best-of-3 finals. Walker, an 11-game winner this year, did not pitch in that series.