Over the course of his 10-year Major League career, Nationals right-hander Dan Haren hasn't won any of his three starts in Miami. Marlins All-Star Jose Fernandez, meanwhile, has never lost there.
Fernandez is 3-0 with a 1.47 ERA in eight home starts this season. On Saturday, he will make his last start before attending his first Midsummer Classic next week.
At 20 years old, Fernandez is the youngest All-Star in club history and the sixth-youngest pitcher to receive an invitation. But he's not letting all of that affect him.
"Right now, I'm really worrying about my next start, who I'm pitching against, getting my mechanics perfect and getting stuff done the way I should be," the rookie said on Monday. "I'm really trying to focus on every start and keep trying to get better."
Fernandez leads the Marlins with 10 quality starts and ranks eighth in the National League with 9.03 strikeouts per nine innings. He also leads all rookies with a 2.83 ERA, 1.07 WHIP and .194 batting average against.
"He's got a plan when he goes out there to pitch and he knows what he's got to do," Marlins manager Mike Redmond said. "Does he execute it all the time? No. But you know what? Nobody does. But I think it's the ability to adapt that he's showed when maybe he doesn't have his best command or his best fastball command or best breaking ball command."
Haren will make his second start after spending time on the disabled list with right shoulder inflammation. The veteran right-hander has looked out of sorts all season and hasn't won a game since May 9, but he took a step in the right direction in his previous start against the Phillies, allowing just two runs on seven hits with seven strikeouts.
"I was pleased with his command. I was pleased with his stuff," manager Davey Johnson said after the game. "He threw the ball really good. I'm glad to have him back."
After a productive homestand that helped them pull to within four games of the Braves in the NL East, the Nationals have lost four of their past five games, including an 8-3 loss in Friday's series opener. The Marlins, meanwhile, are 21-16 since May 31, the second-best record in the NL during that span.
Marlins: Hechavarria extends hitting streak
With a single in the first inning, shortstop Adeiny Hechavarria pushed his hitting streak to a career-high 11 games on Friday. He added a double in the eighth and is batting .322 (39-for-121) since June 5.
"We've all said that this is a kid who's going to hit," Redmond said. "I've said it all year that I marvel at how he cannot carry his offense out to play defense and how well he's handled that in times when he's struggled."
• The Marlins introduced No. 6 overall pick Colin Moran in a news conference on Friday. Moran, a third baseman out of the University of North Carolina, signed Thursday for the slot value of $3,516,500.
• Outfielder Chris Coghlan, who has been on the 15-day disabled list since June 9 with right calf nerve irritation, was cleared to resume baseball activities on Thursday. There is no timetable for his return.
Nationals: Zimmermann to skip All-Star game
Nationals right-hander Jordan Zimmermann will not pitch in his first All-Star Game on Tuesday because of lingering stiffness in his neck.
Zimmermann is 12-4 with a 2.58 ERA this season, but he has felt tightness in the neck for more than a month. An MRI exam before Friday's game revealed an issue with some soft tissues in Zimmermann's neck.
"I don't know if I strained a muscle or what the deal is," he said. "I would wake up in the morning and it would be pretty stiff. As the day goes on, it gets better. Obviously, looking towards home, looking to first, I can feel the tightness in [the neck]. I don't think it affects anything, but it's a nuisance."
Johnson does not expect Zimmermann to spend time on the disabled list, and he recommended Stephen Strasburg, Gio Gonzalez or Rafael Soriano as possible All-Star Game replacements.
• With his start in Friday's series opener, shortstop Ian Desmond passed Cristian Guzman and moved into sole possession of second place on the Nationals' all-time games played list. Desmond, who has started 91 of the team's 92 games this season, has now played more games than anyone in franchise history besides Ryan Zimmerman.
• The Nationals have won only four of their 19 series in Miami since the beginning of the 2007 season.
• Strasburg pitched only two innings on Friday, tied for the shortest outing of his career. On Marcell Ozuna's three-run triple in the first inning, Strasburg allowed more earned runs in one swing than he has in 13 starts this season.
Tom Schad is an associate reporter for MLB.com. This story was not subject to the approval of Major League Baseball or its clubs.