FORT MYERS, Fla. — As workouts go, it wasn’t particularly stressful. Drew Pomeranz and Steven Wright each threw 25 pitches from a bullpen mound on Tuesday.

But it was nonetheless a significant day for the Red Sox to see two All-Star starters take the mound and pitch without discomfort after dealing with injuries all winter.

“Encouraging,’’ manager John Farrell said.

Pomeranz, who ended last season with a sore left forearm and elbow, threw nearly all fastballs and with more effort than the coaches were expecting.

“I felt good,’’ he said.

Pomeranz was traded to the Sox in July, a deal that Major League Baseball investigated when it was learned the San Diego Padres withheld medical information. The Sox were given the option to rescind the trade but elected to retain Pomeranz.

Pomeranz missed his final start of the season with forearm pain and was put in the bullpen for the postseason. He appeared in two playoff games but had an injection of stem cells into his elbow a short time later.

“It was pretty painful,’’ Pomeranz said. “They scrape the flexor tendon to cause some bleeding then they shoot the stem cells on top so your body knows to heal there.

“I was fine five minutes into it then 20 minutes later I couldn’t bend my arm for five days.’’

Until Monday, Pomeranz had not thrown off a mound since Oct. 10 against the Indians. His arm felt strong, he said several times.

Wright also had not thrown off a mound since that Cleveland series. He was not on the playoff roster but was working on the side in case the Sox advanced. But his shoulder never felt right.

Wright usually starts his mound work in January but held off. He said his arm felt normal and he’s focused on preparing for the season.

The injury, he hopes, is in the past.

“Every time I go out there it feels better and better. It has responded well,’’ Wright said.

Farrell and others were watching intently. The Sox believe Wright and his knuckleball would add balance to their rotation.

“He was out over his front side with good extension. He was able to throw his fastball and knuckleball and didn’t speak of any lingering issues with his shoulder. A very productive and positive day for Steven,’’ Farrell said.

Both pitchers will throw again on Thursday. With spring training longer this season to accommodate the World Baseball Classic, Pomeranz and Wright have ample time to be ready for the regular season.

Comeback trail

Third base coach Brian Butterfield has more of a physical issue than any player in camp. He had his right knee replaced in December and is still recovering.

“By the time the season starts, I’ll be more than ready. But in spring training, we’re playing it by ear. I don’t want any setbacks,’’ said Butterfield, who turns 60 next month.

Butterfield had his left knee replaced before last season, which went well. But his right knee started to worsen and he got by with medication.

He hoped to avoid another surgery but rest didn’t help.

“I didn’t want to do it,’’ he said. “But the quality of my life was getting more and more miserable. So I called [team doctor Larry Ronan] and said it was time.’’

Butterfield also had both toenails removed from his big toes, the result of painful ingrown nails.

“That gave me relief that will last through the entire season,’’ he said.

Sale goes to work

In his first live batting practice session, Chris Sale threw 30 pitches to Chris Young, Junior Lake, and Dan Butler. Outside of three breaking balls, it was all fastballs and changeups . . . Brandon Workman also threw to major league hitters for the first time since the 2015 season. The righthander, who is coming back from Tommy John surgery, said his mechanics and velocity approved over time. Workman is almost sure to start the season with Triple A Pawtucket after missing so much time . . . Craig Kimbrel threw in the bullpen for the third time. The closer is working on adjustments to his delivery and won’t face hitters until Wednesday or Thursday. “On the whole, guys are making solid progress,’’ Farrell said . . . Congratulations to lefthanded reliever Robby Scott. He recently became engaged to Chelsea Briche.

Peter Abraham can be reached at pabraham@globe.com. Follow him on Twitter @PeteAbe.