DENVER — Dodgers ace Clayton Kershaw, sidelined since late June with a herniated disk in his back, was moved to the 60-day disabled list Wednesday.

That means the 28-year-old won’t be able to return until Aug. 27, at the earliest.

Los Angeles Manager Dave Roberts said the three-time Cy Young winner hasn’t participated in any baseball activity since he suffered a setback in a simulated game July 16.

“He has not thrown, he has not played catch, he has not picked up a baseball,” Roberts said before the Dodgers faced the Colorado Rockies.

Roberts also said the team hasn’t ruled out the possibility of season-ending surgery for Kershaw.

Roberts made it clear, though, that nothing in that direction has been set in motion.

PIRATES: Manager Clint Hurdle is sitting Andrew McCutchen for three straight days.

McCutchen, the 2013 NL MVP, says he’s OK with the decision even if he doesn’t agree with it. The outfielder sat out Pittsburgh’s victory Tuesday night over Atlanta and will not be in the lineup the next two nights because of a season-long slump.

McCutchen, a five-time All-Star and four-time Silver Slugger, hit .298 in his first seven seasons with Pittsburgh. In 97 games this year, he has a .241 average and is on pace for a career high in strikeouts.

After watching McCutchen go 1 for 12 in a three-game series last weekend at Milwaukee, Hurdle called McCutchen into his office Sunday to tell him that he would not be in the lineup for a three-game series against the Braves.

“This man’s fought, shown up, done early work, late work, side work, video work. In situations like this where I’ve seen it happen with good players, you just unplug ’em. The manager’s got to do it.”

METS: First baseman Lucas Duda will likely not play again this season because of a recurrence of back pain.

Duda has been sidelined since May 20 because of a stress fracture in his lower back, an injury originally projected to keep him out of the lineup for 4 to 6 weeks. General Manager Sandy Alderson said Duda’s back flared up late last week during drills at the team’s training complex in Port St. Lucie, Florida.

CARDINALS: Left-handed reliever Tyler Lyons went on the 15-day disabled list with a sore right knee. Lyons was 2-0 with a 3.38 ERA in 30 games.

MARINERS: Right-hander Taijuan Walker, on the DL with a right ankle strain, will likely return this weekend. He threw 41/3 innings Monday for Triple-A Tacoma in a rehab start.

ATHLETICS: Manager Bob Melvin said catcher Josh Phegley, on the disabled list since July 2 with a strained right knee, is participating in all baseball drills but still not comfortable going in and out of a crouch. It’s the second time this season he’s been on the DL with a strained right knee.