Grae Kessinger, rookie infielder for Houston, watched the first eight games of the Astros’ postseason run from the dugout. The ex-Ole Miss star got quite a different view of the proceedings in the ninth inning Friday night, watching from first base as a pinch runner when Jose Altuve launched a momentum-shifting three-run homer that carried the Astros to a 5-4 win over Texas in a wild, wild Game 5 of the American League Championship Series. Kessinger went in at shortstop in the bottom of the ninth and, with two runners on, made a leaping snag of a line drive for the first out. Two outs later Houston had swept the three games at Globe Life Field to go up 3-2 in the best-of-7. The defending champs can earn yet another trip to the World Series with a win in Game 6 at home on Sunday. The grandson of longtime big leaguer Don Kessinger — who never made a postseason appearance in 16 years in The Show — Grae was a midseason call-up by the Astros this year and played sparingly, batting .200 with one homer in 40 at-bats. Houston kept the versatile Kessinger on the postseason roster but didn’t get him into a game before Friday. It was one that won’t soon be forgotten, by Kessinger or anybody else who watched. Before Adolis Garcia’s dramatic three-run homer for Texas in the sixth inning and the benches-clearing kerfuffle he instigated in the eighth, former Mississippi State standout Nathaniel Lowe put the Rangers on the board with an opposite-field homer off Justin Verlander in the fifth. It was Lowe’s second homer this postseason, and he is now 5-for-19 in the ALCS. … Meanwhile, in Arizona, things got a little wild also in Game 4 of the National League Championship Series. The Diamondbacks, summoning a rally for the second straight day, scored three times in the eighth inning, handing ex-Mississippi Braves star Craig Kimbrel the first blown save of his postseason career and beating Philadelphia 6-5. The series is square at 2-2. The big blow against Kimbrel (now 10-for-11 in saves) was a two-run, game-tying bomb by pinch-hitter Alek Thomas. A subsequent single and walk knocked Kimbrel out of the game, and the go-ahead hit came from Gabriel Moreno against Jose Alvarado. The Phillies struck out three times in the ninth. Of note: Brookhaven native and veteran MLB umpire Lance Barksdale is slated to be behind the plate for Game 5 tonight at Chase Field, which will feature aces Zack Wheeler and Zac Gallen.