VIERA, Fla. -- Even Matt Harvey could chuckle while recalling Jayson Werth's mammoth home run in the first inning of Sunday's game against the Nationals, perhaps the longest homer the Mets have seen this spring.

"He hit it pretty good," Harvey acknowledged good-naturedly.

Werth's homer was the lowlight of a nightmarish afternoon for Harvey -- hardly what the No. 2 prospect envisioned when the Mets borrowed him from Minor League camp to make his first career big league start. Allowing two home runs and two doubles to the first four batters he faced, Harvey gave up five runs, seven hits and three homers in the first inning alone. Because Harvey threw 43 pitches in the inning, the Mets did not allow him to go back out to the mound for the second, despite a target pitch count of 90.

"Something I learned from today is slowing everything down, getting off the mound and taking a couple of extra breaths," Harvey said. "It wasn't nerves or anything like that. It was me being a little amped up and my body was moving a little too quick. It's something I'll learn from."

"He's a better pitcher than what he showed today," manager Terry Collins said. "He's closer to the Major Leagues than what he showed today."

Wright could make spring debut on Monday

VIERA, Fla. -- Mets third baseman David Wright could make his Grapefruit League debut as soon as Monday, depending on how he feels in the morning.

Wright participated in another full day of drills in Port St. Lucie on Sunday with no problems, putting him on track for an early-week return.

Still recovering from a strained left abdominal muscle, Wright will speak to manager Terry Collins and trainer Ray Ramirez on Monday morning before deciding whether to join the Mets for their 1:05 p.m. ET game against the Cardinals at Jupiter. If he does not return Monday, Wright will almost certainly make his debut at home on Tuesday against the Braves.

The Mets also received good news Sunday on outfielder Scott Hairston, who took a round of batting practice without issue, and center fielder Andres Torres, who woke up feeling "a lot better," according to Collins. A day earlier, Collins had been pessimistic about Torres' chances to be ready for Opening Day.

Left-hander Olson hit on pitching hand

A batted ball hit Mets left-hander Garrett Olson on his pitching hand during a Minor League game on Sunday, dealing one of the team's bullpen candidates a possible setback.

Olson was pitching against the Marlins' Double-A Jacksonville team in Port St. Lucie, Fla., when he was struck in the palm, leaving him with a contusion. The 28-year-old, who tossed 1 2/3 scoreless innings on the day, was taken to a local hospital for precautionary X-rays, which were negative.

If healthy, Olson is a strong contender to make the Mets as a reliever, with fellow lefty Tim Byrdak recovering from knee surgery. In seven Major League games during Spring Training, he has allowed one run on three hits in 5 2/3 innings, striking out three and walking one.

Olson pitched in four games as a reliever for the Pirates last season, before signing with the Mets as a free agent in December. For his career, he has appeared in 103 games, including 44 starts, and is 14-22 with a 6.14 ERA.

Worth noting

• Right-hander Dillon Gee fired six scoreless innings Sunday in a Minor League game against the Triple-A Marlins, striking out four, walking none and allowing five hits. The Mets held Gee back from Sunday's Grapefruit League game so as not to overexpose him to the Nationals, whom he has already faced twice this spring.

• After Bobby Parnell's seventh scoreless outing of the spring, Mets manager Terry Collins acknowledged that Parnell not only is in line to make the team, but also "has a chance to be a pretty big part of this bullpen." Parnell has retired a total of 19 batters this spring without allowing a run.

• Second-base prospect Corey Wimberly fractured the fifth metatarsal in his left hand last Friday in a collision with outfielder Cory Vaughn. The Mets expect Wimberly to miss five weeks.

• R.A. Dickey will be signing copies of his autobiography, "Wherever I Wind Up: My Quest for Truth, Authenticity and the Perfect Knuckleball," on Friday, March 30, at 6 p.m. ET at BAM! Books and Entertainment in Jupiter. Dickey's book is slated for release on Thursday.