It's not as if the four-homer list itself doubles as a recording of the greatest sluggers in baseball history - Mark Whiten and Pat Seerey are on it - but Gennett still stands alone as a power-sapped name amid an exclusive group of hitters.
But last night was another one for the record books in Cincinnati.
Diamondbacks 10, Padres 2: Robbie Ray struck out 11 in 62/3 innings and Chris Owings hit a three-run homer, helping Arizona cruise past San Diego. The Royals rallied from a six-run deficit and stopped Houston's 11-game winning streak Tuesday night when Mike Moustakas hit a tiebreaking, two-run homer in the bottom of the ninth inning off closer Ken Giles. He became the first player ever to collect four homers, five hits and 10 RBIs in a game.
Gennett's grand slam was the first Wainwright had allowed since 2012.
Scooter Gennett was the headline around the majors on Tuesday night, going a flawless 5 for 5 at the plate with a massive 4 home run, 10 RBI performance including a grand slam off of Wainwright in the 3rd inning. Gennett followed with his fifth homer of the season off John Gant, then hit a solo shot off the right-hander.
The last time someone hit 4 round trippers in a single game was Josh Hamilton, back in 2012 for the Texas Rangers. That game, Cameron actually almost hit 5, which would've set the Major League record. - Avisail Garcia, Volmer Sanchez and Todd Frazier homered, helping the Chicago White Sox stop a five-game losing streak with a 4-2 victory over the Tampa Bay Rays on Tuesday night.
"I was kind of laughing, to be honest with you", Gennett said. They've dropped eight of their last 10 overall.
Playing at the new Yankee Stadium for the first time without now-retired slugger David Ortiz on the roster, the Red Sox launched a trio of long balls and moved within a game of first-place NY.
Jesse Chavez (5-6) picked up the win, allowing two runs and seven hits in 5 2/3 innings.
Mets starter Jacob deGrom (4-3) pitched only four innings for his second straight start.
A brief rain storm on Monday caused the Reds' batting practice to be cancelled, meaning Scott Schebler couldn't test his left shoulder that caused him to leave Saturday's game.
Reds: RHP Bronson Arroyo (3-4) is coming off one of the best outings of his comeback season. He allowed only two runs in six innings of a 3-2 victory over Atlanta on Friday. In his career, Arroyo is 8-18 with a 4.91 ERA and 153 strikeouts against St. Louis.