No major leaguer had ever gotten five hits, four homers and 10 RBIs in a game, according to the Elias Sports Bureau.
With the Reds, he established his role as that of utility man, not unlike Scooter the Muppet, whom Gennett is nicknamed for. He started in left field on Tuesday night.
Cincinnati's Suarez hit his triple with the bases loaded, accounting for the other three runs in the Reds' 13-1 victory. To nobody's surprise, that pitch was also dead center of the plate, but this time it was a loopy, hanging curveball.
Gennett's grand slam in his next at-bat was the first Wainwright had allowed since 2012. An inning later, reliever John Gant entered with a runner on third, and Gennett tagged him for a homer on a full count; he struck again with a solo shot off Gant in the sixth.
Gennett, 27, spent his first four years in Milwaukee, where he made Bernie Brewer slide 35 times in 456 games and was a fan favorite for his scrappy play and likable personality - not to mention the eminently chant-able name.
Nola spent nearly a month on the disabled list with a lower back strain before losing his three decisions in May. Adam Jones singled with one out in the 10th and took second on a long fly out by Manny Machado before Trumbo delivered a liner to center field off Wade LeBlanc (3-1).
Jesse Chavez (5-6) picked up the win, allowing two runs and seven hits in 5 2/3 innings. Whit Merrifield hit a three-run double with two outs to tie it at 7.
Angels 5, Tigers 3: Kole Calhoun and C.J. Cron homered as the Angels beat the Tigers. "It's maybe a little short of a miracle", Gennett, who is listed at 5 feet, 10 inches and 185 pounds, said after the game.
Nola (3-3) gave up five hits and one walk and struck out six. In eight seasons as a pro (both minors and majors), he had only hit ten or more home runs in an entire season once, last season when he hit 14.
A new search is underway in a neighborhood near the home of two of the London Bridge attackers, hours after police said they had freed everyone detained after the attack.
White Sox 4, Rays 2: Avisail Garcia, Volmer Sanchez and Todd Frazier homered, helping the White Sox stop a five-game losing streak. Whiten did it in 1993 at the Reds' old riverfront ballpark, driving in 12 runs that stand as the major league record.