FORT MYERS, Fla. — Vaughn Grissom’s transformation is evident. The Boston Red Sox prospect reported to spring training this year noticeably bigger and stronger, with a more relaxed and conversational demeanor. His hitting coach noted an intensity in his workouts and a purposefulness in his swing that were absent a year ago. Grissom himself feels a renewed confidence, stating, “It doesn’t matter who’s up there or what the situation is, I feel like I’m good for it. I’ve got my confidence back.”

Grissom’s journey to this point has been tumultuous. The Red Sox acquired him from the Atlanta Braves in a trade that sent Chris Sale to the Braves. Grissom, then 22, was a rising star known for his versatility and aggressive batting style. The Red Sox saw him as a solution to their long-standing second base instability, a position that had been a revolving door since Dustin Pedroia’s knee injury in 2017.

However, Grissom’s first year with the Red Sox was marred by injuries and setbacks. He arrived in camp injured and weak, spending the year trying to recover rather than excel. This was a new experience for Grissom, who had always been uber confident in himself. Last year, he had a big-league job but wasn’t physically ready for it. This year, he feels ready to compete for a spot.

“I want him to concentrate on that position,” Red Sox manager Alex Cora said. “He did a good job putting himself in this spot now. You see him physically. He’s stronger and more explosive.”

— Alex Cora, Red Sox Manager

Grissom’s journey with the Braves was equally impressive. Braves manager Brian Snitker fondly recalled Grissom’s dedication, often seeing him stretching before dawn. “I love Vaughn,” Snitker said. “I mean, you can’t help but like that kid. He loves to play baseball.”

Drafted in the 11th round in 2019, Grissom quickly rose through the ranks, becoming the 11th-best prospect in the Braves organization within three years. His stellar pitch recognition and high-contact approach made him a standout. In 2022, he climbed from A-ball to the majors, hitting a home run in his big league debut at Fenway Park. Despite his talent, the Braves’ crowded infield meant Grissom often bounced between the majors and minors.

His trade to the Red Sox in December 2023 marked a turning point. However, his time in Puerto Rico for winter conditioning was fraught with challenges. Limited gym access and dietary issues led to muscle loss, and he strained his hamstring. The trade blindsided him, and he arrived at Red Sox camp unusually skinny. Injuries piled up, including a groin strain and a second hamstring injury. His Triple-A numbers suffered, and he described every game as a battle.

Red Sox Triple-A manager Chad Tracy noted, “You fall behind, and you feel like you’re playing at a slower speed.” Grissom’s turnaround began in August when he went 4 for 5 with a grand slam in Norfolk. From that point, he had a 1.038 OPS in his last 90 Triple-A plate appearances. A late September call-up saw him hit .333 with a couple of doubles for the Red Sox.

Grissom’s offseason in Orlando was crucial. He added bulk while working out with other big-league players. “From talking to him,” said Michael Harris II, a former teammate, “he’s ready to get off.”

Cora, Tracy, and hitting coach Pete Fatse noted a different level of intent in Grissom this spring. “I do think he’s working with a different level of intent,” Fatse said. “I think he knows what he wants, and he’s going about it with an intensity that tells me he’s ready to compete every day.”

Grissom’s approach to the uncertainty at second base, with the potential arrival of Alex Bregman, is one of readiness. “There might not be room for everyone,” he said, “but if it’s going to be a competition, at least this time I’m ready for the fight.”

As the Red Sox navigate their infield options, Grissom’s resilience and renewed confidence make him a key player to watch. His journey from injury to intense competition is a testament to his dedication and determination, qualities that resonate with fans and players alike. With his newfound strength and mental fortitude, Grissom is poised to make a significant impact in the upcoming season.