Dempster has announced his retirement from major league baseball after 16 seasons, according to Chris Cotillo of MLB Daily Dish.

Dempster signed a two-year deal with Boston prior to the 2013 season, but announced he would not pitch in 2014, citing personal and physical reasons.

Red Sox placed RHP Ryan Dempster on the restricted list.

Dempster announced last week that he will not pitch this season due to neck issues and the desire to stay home with his family. The Red Sox put him on the restricted list in order to clear room on the 40-man roster for the addition of Chris Capuano.

Ryan Dempster said Sunday that neck issues which have become tougher to deal with factored into his decision not to pitch in 2014.

Dempster has also cited wanting to spend more time with his family as a reason not to pitch this season. The 36-year-old hasn't ruled out the possibility of returning in 2015. The Red Sox will place Dempster on the restricted list, which means they won't have to pay him his $13.25 million salary.

FOX Sports' Ken Rosenthal reports that Ryan Dempster will not pitch in 2014 due to "physical reasons and his desire to spend more time with his kids."

"I don't feel like I am capable of performing to the ability and standard that I am accustomed to," Dempster said. "I feel it's in the best interest of both the club but most importantly myself to step away from playing baseball at this time. The time is right. I'm not saying retirement but I definitely won't be playing this season." The Red Sox will place Dempster on the restricted list, which means they won't have to pay him his $13.25 million salary in 2014. Dempster's decision cements Felix Doubront's status as the No. 5 starter.

Ryan Dempster will pitch out of the bullpen for the rest of the regular season.

The Red Sox are preparing him for the postseason. Dempster hasn't pitch in relief since 2007 as a member of the Cubs, but the team feels he could be effective in a late-inning capacity.

Ryan Dempster allowed two runs over six innings in a no-decision against the Orioles on Tuesday.

Dempster has now allowed three runs total over his last two starts, but the right-hander has also walked nine in those 11 innings of work. He struck out five on Tuesday while allowing just three hits. His next start will come Sunday against the Blue Jays.

Ryan Dempster allowed one run over five innings in a no-decision against the Rays on Wednesday.

Dempster's bottom line looked good, but he pitched around four hits and five walks to hold the Rays to just the one run. He was aided by seven strikeouts, and he was in line for his ninth win before the bullpen blew the lead. Instead, he remains 8-9 with a 4.70 ERA through 28 starts heading into his start against the Orioles next week.

Ryan Dempster or Felix Doubront will be removed from the rotation following Clay Buchholz's (shoulder) return.

The speculation to this point is that Dempster is probably the most vulnerable, as he has the worst numbers and also has plenty of relief experience. Buchholz is rejoining the rotation on Tuesday.

Ryan Dempster allowed four runs over six innings in a win against the Tigers on Wednesday.

Dempster wasn't stellar but he didn't need to be, as the Red Sox offense provided him with 20 runs in support. He was plenty good enough, though, allowing six hits and two walks while fanning seven. He'll look to make it three wins in a row Tuesday against the Rays in Tampa.

Ryan Dempster allowed three runs over 6 1/3 innings in Friday's win over the White Sox.

His first start since his suspension for hitting Alex Rodriguez, Dempster held the White Sox to one run over the first six innings before running out of gas in the seventh. The veteran right-hander struck out five and walked three in the victory and now sits at 7-9 with a 4.75 ERA through 26 starts this season. His rotation spot could be in jeopardy when Clay Buchholz comes off the disabled list.

Ryan Dempster could be booted from the rotation when Clay Buchholz (shoulder) returns from the disabled list.

The Red Sox haven't decided who will lose their rotation spot, but Dempster has struggled of late and is on the same schedule as Buchholz. The veteran right-hander will return from suspension to make a start on Friday against the White Sox.

Ryan Dempster will make his next start next Friday against the White Sox.

Dempster is currently serving a five-game suspension for throwing at Alex Rodriguez on Sunday. He'll essentially skip a start, though it isn't much of an inconvenience for the Red Sox, as they have upcoming scheduled off-days on Thursday and Monday.

Ryan Dempster will not appeal his five-game suspension and will begin serving it Tuesday.

Dempster, of course, was dealt the suspension for throwing at Alex Rodriguez Monday. The Red Sox will probably use Brandon Workman for a spot start over the weekend before Dempster returns to the rotation early next week.

MLB has suspended Ryan Dempster for five games and fined him an undisclosed amount for intentionally throwing at Alex Rodriguez on Sunday.

No word yet on whether he'll appeal. It's worth noting that the Red Sox have upcoming off-days on Thursday and Monday, so they should be able to get by just fine if he begins serving the suspension immediately. In the end, it's not much of a punishment. Yankees manager Joe Girardi was also fined an undisclosed amount for his actions during Sunday's game.

Joel Sherman of the New York Post reports that MLB will announce a decision Tuesday on how Ryan Dempster will be punished for hitting Alex Rodriguez with a pitch Sunday.

Dempster claimed after the game that he was just trying to pitch Rodriguez inside, but it was pretty easy to see the intent behind it. He's likely looking at a brief suspension for his actions.

Ryan Dempster allowed one run over seven innings in a no-decision against the Blue Jays on Tuesday.

Dempster muddled through two poor starts prior to this one, but the right-hander allowed just four hits and two walks in his seven innings on Tuesday. It was the first time Dempter lasted at least seven innings since June 14. He'll try to keep the train rolling when he faces the Yankees on Sunday.

Ryan Dempster allowed five runs over six innings in a no-decision against the Astros on Wednesday.

Dempster was actually able to do some good things on Wednesday, as he struck out seven batters while not issuing a walk. Still, five runs against a bad Astros offense can hardly be considered a success. He didn't factor in the decision, remaining at 6-8 with a 4.67 ERA this season. He'll face the Blue Jays in Toronto on Tuesday.

Ryan Dempster has a 7.20 ERA in 20 innings over his last four starts.

He's given up 21 runs -- 16 earned -- on 30 hits and 12 walks in that span. Dempster was tagged for seven runs in six innings by the Mariners on Thursday, including a fifth inning grand slam by .178-hitting backup catcher Henry Blanco. "I've just got to execute better pitches,ƒ?? Dempster said after the game. Currently 6-8 with a 4.54 ERA, Dempster isn't worth using in mixed leagues until he turns it around.

Ryan Dempster was tagged for seven runs in six innings by the Mariners on Thursday.

An erratic strike zone from David Rackley played a role in Dempster's struggles; he didn't deserve all five walks he issued. That's not to say he was any good, though. Even his better outings lately have been pretty mediocre; it's been a month and a half since he completed seven innings and three months since he escaped an outing allowing one or no runs. He's currently 6-8 with a 4.54 ERA.

Ryan Dempster allowed two runs over 5 1/3 innings to earn the win against the Orioles on Saturday.

Dempster was pitching without his best stuff but pitched around six hits and two walks for the victory. He struck out four on the night, picking up his first win since June 25. Even so, the right-hander is just 6-8 with a 4.24 ERA this year. He'll take the mound again Thursday against the Mariners.