Don't blame the Phillies if they're not entirely sure which Brett Myers will appear tonight for Game 2 of the National League division series.
Will it be the hyper, sometimes volatile, Myers, the one who entered a news conference yesterday like a playful frat boy, the one who sometimes emotes like a ham actor when things don't go his way on the mound?
Or will it be the Myers who sat quietly at his postgame locker, speaking softly and calmly to his towheaded 3-year-old son, Kolt?
Will it be the Myers who overwhemed opponents during a long second-half stretch of pitch-control and self-control? Or the one who looked like the reincarnation of Kyle Abbott before and after?
The answer will go a long way toward determining the Phillies fate in a series they lead one game to none.
If the 28-year-old righthander, paired in Game 2 and perhaps Game 5 with CC Sabathia, the imposing Milwaukee ace, can find himself and his ephemeral stuff and steal a win, the Phillies could advance to their first NL Championship Series in 15 years.
Perhaps now, with his team ahead in the series, Myers can take a deep breath and channel his inner-Dr. Jekyll?
"Is there a different feel to being 1-0 instead of 0-1? Probably," said Phils pitching coach Rich Dubee. "Maybe he will relax a little bit more."
But Myers wasn't buying the theory.
"No," he said instantly when asked if he'd be more comfortable now that the Phillies' opening-game victory had provided him a slight margin for error. "No matter if we won or lost, you've still got to go out there and pitch to win. That's the mindset you've always got to have. You don't pitch to win, you pitch to dominate.
"I want to go out and get us up two games," he said. "I'm going to go out there and try to do what I need to do to help us win the ball game. You don't think about failure."
Sabathia compared the Phillies' lineup to one in the American League ("They're going to make you work," he said.) But unless it can do something no other National League lineup has managed - rough up the 6-foot-7 lefthander - Myers will have to be sharp.
"I'm not facing him," Myers said of Sabathia. "The hitters have to face him. I have to face the Brewers' lineup. The number one goal for me is to get their hitters out and try to keep the game close."
Myers and Dubee suggested that the pitcher's recent struggles might have been as simple as a faulty arm angle.
After going 7-2 with a 1.72 ERA in the nine starts that followed his shocking descent to triple A, he allowed 14 runs in 82/3 innings over his last two outings.
"Brett threw well" in his bullpen session Tuesday, said Dubee. "He threw well the last couple times. And again, maybe a little extra rest is going to help him."
The bad Myers has a tendency to drop his arm on deliveries, especially when he's weary. That could be the case for someone who, a year after serving as the team's closer, has thrown 190 big-league innings and an additional 27 in the minors.
"Maybe tiredness" was a problem, Myers acknowledged. "I wasn't getting on top of the ball. I took a couple of days off from throwing. The bullpen was a lot better. The angle was back. So I feel stronger than I did the last couple starts."
The proper arm angle might be back, but what about his emotions?
When he walks to the Citizens Bank Park mound tonight, there will be 45,000 excited fans in the stands, a nationwide TV audience watching and an umpire to contend with.
Given Myers' history, it could be a recipe for agitation.
"I like pitching at home," he said. "I've struggled, but this is the time to put that all behind me. It's in the past. It's a new season now. It's time to start over."
Will the real Brett Myers please stand up?