It’s hot today. Really, really hot. And humid. Really, really humid. The temperature in Washington as I type this is 97 degrees, the heat index 109. And it’s barely going to cool down before first pitch tonight against the Cardinals. If you’re coming, please do what you can to hydrate and stay out of the sun. If you’re not coming, enjoy the game on TV from the comforts of home.

After a wild series against the Mets that included back-to-back 10-inning losses and then back-to-back dramatic wins, the Nationals now host the Cardinals for four games in a wraparound series that extends through Monday. They would love to keep the good vibes going, but they’re going to need to continue to get excellent pitching and start scoring some more runs, especially early in games.

Patrick Corbin is tonight’s starter, and you know the drill at this point. With Josiah Gray and Cade Cavalli remaining on the injured list for the foreseeable future, Corbin’s spot in the rotation appears to be secure once again. It’s up to him to make the most of it and at least give his team a chance. He was good in three straight starts against the Tigers, Diamondbacks and Padres. Then he struggled against the Rays. A bounceback start tonight would be very nice.

The Nats lineup faces a tough challenge in veteran Sonny Gray, 9-5 with a 2.98 ERA, 0.992 WHIP and 109 strikeouts in only 87 2/3 innings. The good news, if there is any: James Wood gets to face a righty starter for only the second time in five big league games. The Nationals also have a new first baseman: Juan Yepez, who was officially promoted from Triple-A Rochester this afternoon to replace the demoted Joey Meneses, with Josiah Gray transferred to the 60-day injured list to clear a spot on the 40-man roster.

WASHINGTON NATIONALS vs. ST. LOUIS CARDINALS
Where: Nationals Park
Gametime: 6:45 p.m. EDT
TV: MASN, MLB.tv
Radio: 106.7 FM, 88.7 FM (Spanish), MLB.com
Weather: Hot and humid, 95 degrees, wind 9 mph out to left field

DETROIT – The Nationals won’t know for sure until later today when they get test results on Joey Gallo’s left hamstring, but the image from the top of the seventh Tuesday night kind of said it all.

Running down the line on a grounder to second, Gallo grabbed his upper left leg as he approached first base. He walked gingerly back to the dugout afterward. And he was subsequently replaced in the field by Joey Meneses for the bottom of the inning.

Barring an unexpected quick healing process, Gallo probably isn’t going to be able to play tonight. And unless they can be sure he’ll be ready to return within the next 24-48 hours, the Nats probably are going to have to place him on the 10-day injured list.

Which is why they were already contemplating late Tuesday night their options for calling a player up from Triple-A Rochester to take his spot on the roster.

“We’re probably going to get somebody on the move,” manager Davey Martinez said. “I don’t know yet. We’ll just see what happens. But we’ll definitely have someone on the move.”

WEST PALM BEACH, Fla. – Davey Martinez wanted to see how several relievers in the mix for jobs handled major league hitters, the kind of proven players they don’t normally get to face late in spring training games when backups and minor leaguers take over. So today’s game against the Cardinals became a bullpen game, with a string of relievers trotting in throughout the afternoon to face the likes of Dylan Carlson, Matt Carpenter, Willson Contreras and Brandon Crawford.

The takeaway from all that? Some were up to the challenge, others were not. And almost everybody needed to throw a lot of pitches before returning to the dugout.

The Nationals’ 8-5 exhibition loss saw six pitchers in the mix for Opening Day bullpen jobs take the mound. Only two of them (Derek Law, Robert Gsellman) emerged with a zero on the scoreboard, and each of them returned to toss a second scoreless inning. Four others (Luis Perdomo, Dylan Floro, Tanner Rainey, Robert Garcia) labored, each surrendering at least one run, each needing at least 22 pitches to complete his inning of work.

“Some of these guys, when they get to face big league hitters, the at-bats get extended,” Martinez said. “There’s more pitches; they’re not the five-, six-, seven-pitch innings. That’s kind of what I wanted to see. I wanted to see them get deeper in counts and see how they do. And I saw that today. Some guys were good and battled, and it was nice to see them go through that.”

From today’s group, Rainey and Floro are most assured of making the club, each on guaranteed contracts for $1.5 million and $2.25 million, respectively. Rainey, making his sixth appearance of the spring, issued three walks and uncorked a wild pitch during a rough top of the fifth. Floro, making his delayed spring debut after dealing with a tight shoulder earlier in camp, allowed two singles while inducing two ground ball outs.

NASHVILLE – After making it through the entire 2023 season with a Rule 5-drafted pitcher on their major league roster, the Nationals will attempt to do the same with a position player in 2024.

The Nats selected Marlins shortstop Nasim Nuñez with the fifth-overall pick in this afternoon’s Rule 5 Draft, hoping the speedy, defensively gifted, 23-year-old can contribute enough next season to stick and perhaps someday develop into a permanent big leaguer.

Nuñez, who was set to be rated Miami’s No. 6 prospect by Baseball America, is an “elite” defensive shortstop and baserunner who draws walks at a high rate but has yet to hit consistently in the minors. The Nationals understand he’s not ready to play regularly in the majors, but they believe he provides enough skills in specific areas to give him a shot to stay on the roster the entire 2024 season.

“It’s going to be a challenge, because obviously he’s not going to get a lot of at-bats at the big-league level,” general manager Mike Rizzo said. “But I think with the coaching staff we have right now, and with the reps he will get other than gametime reps, I think we can really iron out some mechanical issues. … And I think he gives (manager Davey Martinez) an option off the bench: a defensive replacement, elite defensive skills and a baserunner. A guy that can help us win games at the big-league level.”

A second-round pick of the Marlins in 2019 out of Collins Hill High School in Suwanee, Ga., Nuñez progressed his way up the minor-league ladder and the organizational prospects list thanks to his legs, his glove and his eyes. He has stolen 183 bases in 351 professional games, including 52 this season at Double-A Pensacola. He is a strong-armed shortstop who was rated Miami’s best defensive infielder by Baseball America. He also has shown an unusual patience at the plate for a player of his age, ranking fourth among all Double-A players this year with 87 walks.