Hernandez has a torn muscle in his right calf and was left off New York's first-round roster, leaving the NL East champions without two of their top starters. That means erratic left-hander Oliver Perez, who went 3-13 with a 6.55 ERA this season, is slated to start Game 4 in Los Angeles, if necessary.
"All year long we've had guys who picked each other up," general manager Omar Minaya said. "I'm confident somebody will pick up El Duque."
Maine did a credible job in Game 1. He gave up one run and six hits in 4 1/3 innings, striking out five. New York held off the Dodgers for a 6-5 victory.
"I feel proud about Maine's work. We were expecting that from him," a visibly upset Hernandez said through a translator.
With the Mets already missing Pedro Martinez, Hernandez had been scheduled to start the postseason opener. But El Duque got hurt Tuesday while jogging in the outfield, leaving the Mets scrambling to rearrange their rotation.
They turned to Maine, who went 6-5 with a 3.60 ERA in 16 games this season, including 15 starts. The right-hander had not been expected to pitch until later in the series at Los Angeles -- if at all.
Had Martinez not been sidelined for the entire postseason by calf and shoulder injuries, Maine might have been left out of the playoff rotation altogether.
Instead, he found himself starting Game 1 at home before a packed house of more than 50,000 fans. And he could wind up pitching twice in the series.
"He's a tough kid mentally. You know, he doesn't get intimidated a whole lot by what's going on," said Mets pitcher Tom Glavine, who will start Game 2. "He's a typical young pitcher that's trying to find his groove in terms of consistency. I mean, he has the stuff to be good and he has the stuff to be successful at this level."
Maine lacks the October experience the Mets were counting on with Hernandez, acquired from Arizona in May. El Duque is 9-3 with a 2.55 ERA in 19 career postseason games, including 14 starts, mostly with the Yankees. He also owns four World Series rings, and his teams are 12-3 in postseason series.
"He was obviously very, very distraught. Very upset," Mets manager Willie Randolph said. "This is his time of year.
"He's one of the hardest workers on the team, regardless of how old you might think he is. No one lifts as many weights and runs as hard as he does. For him to be out there getting loose, getting ready for the game, to pull a muscle like that is really bizarre. But hey, he feels terrible today. I saw him earlier. He felt like he let us down," Randolph said.
An MRI on Tuesday revealed Hernandez sustained a tear in his calf.
"That takes time," Minaya said.
El Duque lined up along the first base line with his teammates for pregame introductions.
"He's got a boot on his leg, so not too comfortable getting around," Randolph said. "We're going to hold out that, you know, when we get to the World Series that he'll be able to help us."
The Mets informed Maine on Tuesday night that there was a good chance he would start Wednesday. After Minaya and Randolph discussed all their options, they decided on Maine late Tuesday night, the GM said.
"He was the perfect guy for it. He was right on turn," Randolph said.
Steve Trachsel will start Game 3 for the Mets. Trachsel, who was 15-8 with a 4.97 ERA this year, skipped his scheduled outing last weekend to attend to a family matter on the West Coast. He returned to New York late Tuesday afternoon and had a bullpen session.
Left-handed reliever Royce Ring also made the team. He had been sent to Florida as part of a taxi squad to stay ready.
The Mets kept 12 pitchers for the first round.
Backup outfielder Michael Tucker was included on the roster, giving the Mets another left-handed bat on the bench. Rookie outfielder Lastings Milledge and outfielder Ricky Ledee were left off. Milledge was also part of the taxi squad in Florida.
As for the Dodgers, their rotation was all set for the first three games. Derek Lowe will go in the opener, followed by rookie left-hander Hong-Chih Kuo and future Hall of Famer Greg Maddux, who has 333 career wins.
However, reliever Joe Beimel, who injured his pitching hand Tuesday morning, was left off Los Angeles' division series roster, according to a report on the Dodgers' Web site. Beimel reportedly flew back to California to meet with a plastic surgeon, and the Dodgers are hoping he will be available for the NLCS.
Lowe pitched his best ball of the season down the stretch, going 8-1 with a 2.39 ERA in his final 11 starts to help Los Angeles win the NL wild card. Relying on his nasty sinker, he finished the year 16-8 with a 3.63 ERA.
The right-hander has had plenty of success in October, too. A closer in Boston before he became a regular starter, he has a 3.05 ERA in 17 postseason games, including six starts.
Lowe also won the clinching game for the Red Sox in all three of their postseason series in 2004, helping them to the first World Series title in 86 years.
"The playoff season is his time of the year," said Dodgers skipper Grady Little, who also managed Lowe in Boston. "We don't know where we'd be without him."
In fact, the last time Little and Dodgers first baseman Nomar Garciaparra appeared in the playoffs, they were trying to end the Curse of the Bambino for Boston in 2003.
But Little left a tiring Martinez on the mound during an eighth-inning comeback by the New York Yankees in Game 7 of the AL Championship Series, and the Red Sox were eliminated in gut-wrenching fashion.
Little was let go soon after, and Garciaparra was traded to the Chicago Cubs the following July.
That fall, Lowe pitched Boston to the championship.
Now, all three are key cogs on the revamped Dodgers, who lost 13 of 14 coming out of the All-Star break but then rebounded with a 17-1 stretch. They also dropped 12 of 20 before ending the season on a seven-game winning streak.
"We've been a streaky club all season long. And we're on another one of those good streaks right now," Little said. "Everything's clicking. We're just ready to get this thing started."
Garciaparra was slated to play Wednesday despite sore quadriceps and an ailing muscle on his side.
"I couldn't tell you what hurts more," he said. "They all feel good enough to go out there and play, and that's what I'm pleased about."
New York left fielder Cliff Floyd has been hobbled by a sore Achilles' heel but was expected to start as well.
Information from The Associated Press was used in this report.