The Red Sox had a split-squad Saturday, hosting the Washington Nationals at JetBlue Park in Fort Myers, and visiting the Tampa Bay Rays in Port Charlotte for a pair of dueling 1:05 p.m. games.

Boston’s baseball team emerged victorious in both contests, besting the Nationals 4-2 and the Rays 3-2, to improve to 6-3-1 in spring training play. They have two more split-squad days left before things get real later this month.

The jam-packed day included a learning experience for Brayan Bello, and a scary incident involving a Nationals top prospect. Here are some more noteworthy moments:

Triston Casas

After battling the flu, Triston Casas was finally able to make his spring training debut on Saturday.

“I had plenty of chances my first two at-bats to put something together and I didn’t, but hopefully a lot of baseball left,” he told Webster after going 0-for-2 with a pair of strikeouts.

No matter, the 23-year-old first baseman was just happy to be back in action.

“I was just sitting in the dugout after striking out, and I was so happy,” he said, beaming. “I just had a smile just to be back out here, put on the uniform, be in this dugout with this group of guys and go compete again. Bello had his good stuff working, it was fun to play behind Tanner (Houck), they were inducing ground-balls, quick outs, so yeah, had a lot of fun. It was just, happy to be back out there.”

As for the upcoming season, the first baseman is looking to build on his American League Rookie of the Year finalist performance by sticking with what works and focusing on the mental aspect of the game.

“Just trying to keep a level head, be present,” Casas explained. “Whatever’s going on, just try to be in the moment, not try to take failure or success too heavily. Just try to go out there and play the game like I know how to: hard, smart, and fast. Lean on my teammates, and just try to put as much trust as I can into the guys next to me, that they’re gonna have my back.”

Nick Pivetta

Nick Pivetta got the ball in Port Charlotte and pitched two no-hit innings with one strikeout.

Tanner Houck

Tanner Houck came to camp built up as a starter, but he worked in a long relief role on Saturday, following Bello with three practically-perfect frames. He gave up one hit and issued a walk, but struck out five. Alex Cora told reporters it was a “great” outing.

Zack Kelly

Zack Kelly was among the Red Sox relievers who had a front row seat to Daylen Lile’s bullpen injury in the 7th inning at JetBlue Park, and looked visibly shaken up as the Nationals top prospect was immobilized and wheeled out on a stretcher.

So, it was all the more impressive when Kelly took took the mound for the 9th, showed off some mid-90s heat, and clinched the win and his first save of the spring.

Noah Song

Minutes after Kelly cemented the victory at home, Noah Song locked it down on the road.

The 26-year-old righty, who returned to the Red Sox after a failed Rule 5 Draft pickup by the Philadelphia Phillies, entered in the bottom of the ninth, looking to preserve a one-run lead and finish off the Rays. Song made things difficult for himself, giving up a leadoff single and double, then proceeded to get three quick outs – a groundout, swinging strikeout, and pop-flyout – for the win and his own first save.