DETROIT — Clay Buchholz of the Boston Red Sox isn’t expected to start Tuesday night against the Colorado Rockies, and there’s no timetable for when he might be ready to return from a strained neck.

Manager John Farrell said Buchholz (9-0) didn’t throw a bullpen session Saturday, although he did do some long-toss and flat-ground work. He’s been on the disabled list since June 9.

The team had hoped he might be able to start Tuesday, but now Ryan Dempster is scheduled to make that start. Buchholz said he’s just not to the point where he can get on the mound yet.

Farrell said he’d like to send Buchholz on a rehab assignment at some point. 

PADRES: San Diego placed starting pitcher Clayton Richard on the 15-day disabled list because of a left shoulder strain.

Richard was removed from Friday’s start after just two pitches because of pain in the acromioclavicular joint of his left shoulder, which is near the collarbone. 

GIANTS: Center fielder Angel Pagan will seek a second opinion from a specialist on his injured left hamstring, which he said sustained a small tear when he re-aggravated the leg during a rehab game Thursday night with Class A San Jose.

Surgery remains an option, and both Pagan and Manager Bruce Bochy said if he needs arthroscopic surgery, the expected recovery time would be 6 to 8 weeks. While Pagan got stuck in traffic on the way to his game Thursday, he insists that didn’t play into him getting injured again because he still had time to warm up in the early innings before entering the game. 

CARDINALS: St. Louis optioned struggling left-hander Tyler Lyons, who lasted just 12/3 innings Friday night, to Triple-A Memphis.

Right-hander Michael Blazek, a 35th-round draft pick in 2007, was recalled to add bullpen depth, and the Cardinals gave Lyons’ spot in the rotation to Joe Kelly. Blazek, 24, made it to the majors for the first time earlier in the season but didn’t appear in a game, and had a 2.31 ERA and one save at Memphis in eight games ,with four of his outings lasting two innings. 

METS: Outfielder Lucas Duda was placed on the 15-day disabled list because of a strained muscle between his ribs.

The Mets recalled infielder Zach Lutz from Triple-A Las Vegas. 

YANKEES: Derek Jeter relocated his rehab from Tampa, Fla., to the Bronx for a couple days as he recovers from his broken left ankle. He said he wanted to “break it up” and be around the team.

He took batting practice and grounders from his spot at shortstop with his teammates. Jeter is doing everything but running outside. He isn’t certain when he’ll start that last step. 

ROYALS: Kansas City activated outfielder Jarrod Dyson from the disabled list and optioned second baseman Chris Getz to Triple-A Omaha.

Dyson had been on the DL since sustaining a high right ankle sprain May 15, when he attempted to climb the outfield wall in Los Angeles and steal a homer from Mike Trout of the Angels. 

NATIONALS: Outfielder Bryce Harper isn’t convinced he can begin a rehab assignment as quickly as his manager believes.

Davey Johnson said he expects Harper to start a rehab stint Tuesday at Class A Potomac. Harper said he thought he needed an extra day or two. 

PHILLIES: Philadelphia placed right-handed reliever Mike Adams on the 15-day disabled list because of biceps tendinitis.

The Phillies called up right-hander J.C. Ramirez from Triple-A Lehigh Valley to replace Adams, who is 1-4 with a 3.96 ERA in 28 games. 

INDIANS: Former general manager John Hart and three-time All-Star second baseman Carlos Baerga were inducted into the team’s baseball Hall of Fame. 

MARINERS: Seattle activated outfielder Franklin Gutierrez from the 60-day disabled list and placed outfielder/first baseman Mike Morse on the 15-day disabled list because of a right quad injury.