The Red Sox will not lack relief pitchers behind Doug Fister during Game 3 of the ALDS on Sunday,

Manager John Farrell said he anticipates David Price being available after throwing 38 pitches over 2⅔ innings on Friday. Farrell also did not rule out using Chris Sale, who threw 100 pitches in Game 1 on Thursday.

“It’s possible, yes,’’ Farrell said.

No starter has been named for Game 4 on Monday if the Red Sox get that far. But if Price does not pitch Sunday, he is a candidate.

“I think that what we’re seeing is 40 pitches is about the comfort zone which he’s been built out at,’’ Farrell said. “He’s throwing the ball very well.’’

Price has pitched in relief six times since Sept. 17 and thrown 11⅓ scoreless innings, giving up only four hits with three walks and 15 strikeouts.

“Cutter to both sides of the plate, has shown a feel for a changeup, full assortment of pitches that he typically has,’’ Farrell said. “He’s done a very good job.’’

Price could theoretically go four innings as a starter. The other alternatives would be Rick Porcello or Eduardo Rodriguez.

At this point, if Sale were to start again it would not be unless there’s a Game 5 in Houston on Wednesday.

“First things first, we’re focused on [Sunday],’’ Farrell said. “Anything as it relates to who would start on Game 4 on Monday, we’ll get to that.’’

Betts ready to go

Mookie Betts received treatment on his sore left wrist but worked out on the field a day after he felt pain while taking a swing in the eighth. He is ready to go on Sunday. “I would have been OK without a day off, but that helped,’’ he said.

Earned his way

Brad Peacock, who starts Sunday for Houston, had to make the team out of spring training and opened the season as a reliever. His first start wasn’t until May 22. He finished 13-2 with a 3.00 ERA.

Sunday will be the first playoff game for the 29-year-old righthander, a 41st-round draft pick of the Nationals in 2006 who has since been traded twice.

“Just being here is special for me. Been humbled along the way, been injured along the way, and just makes it that much more special for me, for sure,’’ he said. “Biggest start of my career.’’

Peacock faced the Red Sox on Sept. 28 at Fenway and allowed two runs on four hits over five innings.

Hairy situation

If the Red Sox come back to win the series, Hanley Ramirez told the Globe’s Nick Cafardo that he will cut his trademark dreadlocks.

Ramirez also urged fans to make Fenway Park a home-field advantage.

“They’d better be ready to go. When you’re eating breakfast, get your energy and come support us,’’ said Ramirez. “We’ll be ready to go.’’

Don’t delay

The gates at Fenway Park will open at 12:38 p.m. on Sunday, two hours before first pitch.

The Sox are asking for fans to arrive early to leave time for security screening. Fans entering the ballpark will be screened using walkthrough metal detectors, and all bags will be checked.

Boston Police Department tactical teams will be stationed inside the ballpark and the surrounding perimeter. Additional officers will be on site, including undercover plainclothes officers.

An Explosive Ordinance Detection team will sweep the park and remain on site during the game. Parking and traffic restrictions in the neighborhood will be strictly enforced.

The gunman who killed 58 people and injured hundreds at an outdoor concert in Las Vegas on Oct. 1 researched Boston-area venues, including Fenway.

In a release, the Red Sox said their security personnel have been in communication with law enforcement and receive daily threat assessments from the Boston Regional Intelligence Center in addition to regular meetings with Homeland Security, the FBI, and state and local officials.

Line them up

Farrell said he is not planning any major lineup switches. But he does plan to keep catcher Sandy Leon with Fister. Christian Vazquez was 2 for 3 with a walk and a run on Friday. Leon was 2 for 4 in Game 1 on Thursday . . . The Red Sox are 42-32-1 at home in the postseason, 26-14 since 1990 . . . The Astros have named Charlie Morton to start Game 4, if needed . . . Counting the regular season, the Sox are 3-6 against Houston and have been outscored, 51-26 . . . As Andrew Benintendi took questions after Saturday’s workout, Brock Holt joined a crowd of reporters. “How many home runs will you hit tomorrow?’’ Holt asked. Benintendi paused for a second. “As many as you,’’ he said, which isn’t very optimistic given Holt won’t be in the lineup.