D-backs’ Brent Strom, Tommy Henry work to improve rookie’s breaking stuff

Aug 7, 2022, 10:45 AM
Tommy Henry #47 of the Arizona Diamondbacks pitches against the Cleveland Guardians in his major le...
Tommy Henry #47 of the Arizona Diamondbacks pitches against the Cleveland Guardians in his major league debut during the first inning at Progressive Field on August 03, 2022 in Cleveland, Ohio. (Photo by Ron Schwane/Getty Images)
(Photo by Ron Schwane/Getty Images)

PHOENIX — Arizona Diamondbacks pitching coach Brent Strom worked with rookie Tommy Henry in the bullpen Saturday, and the southpaw walked away with improved spin rate on his breaking balls.

Strom visited with reporters after the session, and said he noticed Henry gripped his slider and curveball on his fingertips.

“Really good breaking ball pitchers that I’ve had a chance to be around … they hold the ball a lot deeper in their hand,” Strom said.

Strom had Henry grip the ball much deeper in his left hand, and they saw results.

The coach said TrackMan data disclosed Henry’s spin rate went up after the change, and he felt more power with the two pitches.

Henry made his MLB debut Wednesday in Cleveland. The 23-year-old had a 3.83 ERA in 20 starts with Triple-A Reno this year and is Arizona’s No. 12 prospect on MLB Pipeline.

The southpaw attacked primarily with his fastball but went to the slider as his primary offspeed pitch.

Henry handled himself with four innings of one-run ball before surrendering a three-run home run in the fifth.

Strom liked Henry’s composure during his debut, an outing in which he finished with four runs in five innings. But, Strom noticed some of his pitches “didn’t have the bite” he expected. Henry got 15 swings on sliders but only two whiffs.

“I just decided to make a jump at it and see if it worked,” Strom said. “He seems to like it. All you can do is try and if it doesn’t work, then you go to a different thing. But he seemed to like it today. So that’s the kind of stuff that I live for, really, to see these kids improve.”

Strom noted that Henry is not the only D-backs arm who altered a grip recently.

The veteran coach had Zac Gallen loosen his changeup grip since the pitch was not getting hitters on their front foot as much as it should have. Strom called it a page out of Greg Maddux’s book.

“As the season goes on, you’re always looking to tweak things, very rarely do you just stay the course,” Strom said.

Strom noted that the Guardians provided a challenge for Henry to make his debut as a team with speed that puts the ball in play.

He tried to hype Henry up pregame by playing the University of Michigan’s, where the rookie went to college, fight song.

Henry’s next crack is scheduled on Tuesday against the Pittsburgh Pirates, who visit the D-backs Monday-Thursday.

Arizona Diamondbacks

Arizona Diamondbacks P Zac Gallen (Tyler Drake/Arizona Sports)...
Arizona Sports

Trio of D-backs land on ESPN’s 2023 MLB Rank top 100 list

Zac Gallen and Ketel Marte made the MLB Rank top-100 list for 2023, but so did Corbin Carroll and his 32 games of MLB experience.
16 hours ago
Jordan Lawlar #1 of the National League throws for the third out in the fourth inning during the Si...
Kellan Olson

ESPN’s Passan buying D-backs rise, eyeing Jordan Lawlar 2023 debut

Could the Arizona Diamondbacks be much more competitive a year earlier than expected? ESPN's Jeff Passan believes so.
2 days ago
Catcher Carson Kelly #18 of the Arizona Diamondbacks prepares to take the field before the MLB game...
Tyler Drake

D-backs’ Carson Kelly dealing with forearm fracture, no timeline for return

The Arizona Diamondbacks will have to navigate the beginning of the regular season without starting catcher Carson Kelly.
3 days ago
Munetaka Murakami #55 of Team Japan celebrates after hitting a two-run double to defeat Team Mexico...
Associated Press

Japan walks off Mexico to set up World Baseball Classic final vs. USA

Shohei Ohtani sparked a ninth-inning rally as Japan walked off Mexico 6-5 to advance to the World Baseball Classic final against Team USA.
4 days ago
Tommy Henry #47 of the Arizona Diamondbacks pitches during the first inning of the game against the...
Arizona Sports

LHP Henry optioned as D-backs key in on final starting candidates

The Diamondbacks optioned Tommy Henry to Triple-A on Monday, whittling down their options to cement the backend of their starting rotation.
4 days ago
Starting pitcher Merrill Kelly #29 of Team USA throws a warm-up pitch during the first inning of th...
Alex Weiner

D-backs’ Merrill Kelly set up to start World Baseball Classic final for Team USA

Team USA "looks like" it will turn to Diamondbacks starting pitcher Merrill Kelly in the World Baseball Classic final on Tuesday. 
4 days ago
D-backs’ Brent Strom, Tommy Henry work to improve rookie’s breaking stuff