--LHP John Lannan's first career opening-day start didn't go nearly as well as the 24-year-old lefty hoped. Lannan was roughed up by the Marlins for six runs and six hits in only three innings, earning an early exit from one of the biggest starts of his young career. Lannan, who relies on pinpoint control, dug himself into a huge hole by throwing first-pitch strikes to only five of 16 batters faced. He paid the price for it, allowing a home run to 1B Jorge Cantu on a 3-0 pitch and to OF Jeremy Hermida on a 2-1 pitch. "You really can't work with much when you're 2-0, 3-0 to everybody," he said. "I felt fine warming up. I was excited, but I wasn't anxious. I just couldn't execute."

--OF Adam Dunn wasted no time making his presence known in the Nationals' rebuilt lineup. The big slugger, who signed a two-year, $20 million contract in February, clubbed a towering, three-run homer in Monday's opening-day loss to the Marlins. It was the fourth time in five years that Dunn has homered on opening day, during which time he's hit six total homers.

--LHP Scott Olsen's first start as a National will come against his former team, but he is trying not to think much about that. Olsen, acquired from the Marlins over the winter in a trade, will start Tuesday at Dolphin Stadium against many of his old friends. "It has a significance in me being in my own bed," the 25-year-old said. "That's about it. Once the game starts, we're not friends anymore for the two, three hours we're out there. Off the field, we'll hang out and be friends again."

--OF Lastings Milledge had a rough opening day. Getting his first shot at leading off, Milledge grounded out on the first pitch of the season and finished 0-for-4 with two strikeouts in the Nationals' 12-6 loss to the Marlins. The center fielder, who turned 24 on Sunday, also watched as 3B Emilio Bonifacio's fourth-inning drive sailed over his head and to the wall for an eventual inside-the-park homer.

ROTATION:

1. LHP John Lannan

2. LHP Scott Olsen

3. RHP Daniel Cabrera

4. RHP Shairon Martis

BULLPEN:

RHP Joel Hanrahan (closer)

LHP Joe Beimel

RHP Saul Rivera

RHP Steven Shell

RHP Julian Tavarez

RHP Mike Hinckley

LHP Wil Ledezma

LINEUP:

1. CF Lastings Milledge

2. SS Cristian Guzman

3. 3B Ryan Zimmerman

4. LF Adam Dunn

5. RF Austin Kearns

6. 1B Nick Johnson

7. C Jesus Flores

8. 2B Ronnie Belliard

RESERVES:

C Josh Bard

C Wil Nieves

OF/INF Willie Harris

OF Elijah Dukes

OF Josh Willingham

INF Alberto Gonzalez

MEDICAL WATCH:

1B Dmitri Young (strained back and hip) went on the 15-day disabled list retroactive to April 1. Young, who has been working himself back into shape while trying to manage diabetes, will remain at extended spring training in Viera, Fla. The Nationals hope he'll be ready to go on a rehab assignment at some point in late April and perhaps return to the big-league roster soon after that.

2B Anderson Hernandez (strained left hamstring) went on the 15-day disabled list retroactive to March 27. He is expected back by mid-April.

RHP Terrell Young (inflamed right shoulder) went on the 15-day disabled list retroactive to March 27.

LHP Matt Chico (Tommy John elbow surgery in July 2008) went on the 60-day disabled list March 28. He will miss at least the first half of the season.