San Francisco 49ers

49ers release Darnell Dockett, five others

Denver Broncos quarterback Peyton Manning (18) throws as San Francisco 49ers defensive tackle Darnell Dockett (90) and Tony Jerod-Eddie (63) pursue during the first half of an NFL preseason football game, Saturday, Aug. 29, 2015, in Denver.
Denver Broncos quarterback Peyton Manning (18) throws as San Francisco 49ers defensive tackle Darnell Dockett (90) and Tony Jerod-Eddie (63) pursue during the first half of an NFL preseason football game, Saturday, Aug. 29, 2015, in Denver. AP

Darnell Dockett, who was signed in March to add veteran punch to the 49ers’ pass rush, was released Friday as the team began trimming its roster to get to 53 players.

The longtime Cardinals defensive end missed the 2014 season because of an ACL injury last August. But he participated in the 49ers’ practices and seemed earmarked to be a third-down specialist on the left side of the defensive line. Dockett, 34, said he was happy in that role.

“At this point, my career is in a good organization’s hands,” he said last month. “And I want to do everything I possibly can to put this team back on the top of the map. I want to be a part of it, and I want to make sure that we have an opportunity to be in the playoffs when everyone thinks that we don’t have a chance.”

Dockett, who is in his 12th season, missed Thursday’s preseason finale with a rib contusion, an injury he revealed this week via Snapchat when he identified it as a “cracked rib.” Coach Jim Tomsula later clarified that the damage was to Dockett’s cartilage and was not severe enough to keep him off the field during the regular season.

At one point in his career, Dockett was the 49ers’ public enemy No. 1, and he loved to use social media to nettle 49ers players – tight end Vernon Davis was a frequent target – and fans. Tomsula was a longtime admirer from the opposing sideline, and he often would chat with and congratulate Dockett after games. When the Cardinals released Dockett earlier this year, Tomsula and the 49ers pounced.

Friday’s cuts also included safety Craig Dahl and guard Joe Looney, both of whom have contributed in recent years, as well as veteran linebacker Philip Wheeler, who recently returned from a hamstring injury.

The 49ers are replacing two 30-something defensive ends, Ray McDonald and Justin Smith. Glenn Dorsey, 30, is slated to start on the left side of the defensive line, while third-year player Quinton Dial will play on the left.

Dockett has 401/2 sacks over a 10-year span. The rest of the players on the line are young and unproven. The group includes Tank Carradine, Tony Jerod-Eddie and first-round pick Arik Armstead.

Considering that Armstead, who starred at Elk Grove’s Pleasant Grove High School, also plays on the left side – as does Jerod-Eddie – Dockett’s ouster likely heralds more snaps for the rookie. Armstead played 58 snaps in Thursday’s preseason finale, more than any other 49ers defender.

Dockett said last month that Armstead compares favorably to similarly sized defensive lineman Calais Campbell, a former teammate with the Cardinals.

“Some guys come in, being a first-rounder, and they think they know everything,” Dockett said. “(Armstead) is not like that. He asks questions, and he wants to learn. And he’s very humble. That’s what I really like about him the most.”

The 49ers signed Dockett to a two-year, $7.5 million contract ($2 million guaranteed) in March, a week after the Cardinals released him. He would have earned a $250,000 roster bonus had he been on the team next week.

The 49ers must reduce their roster to 53 players by 1 p.m. Saturday.

Others cuts:

▪ Issac Blakeney, WR. The tall undrafted rookie from Duke played 33 snaps in the exhibition finale. He ended the preseason without a reception.

▪ Dahl, S. The veteran was squeezed out at a position teeming with younger players such as Jimmie Ward, Jaquiski Tartt and L.J. McCray.

▪ Looney, G. Looney started the team’s first two preseason games at center. He was the lone remaining member of the 49ers’ dubious 2012 draft class, which also included A.J. Jenkins and LaMichael James. Looney’s release likely means that either Ian Silberman or Dillon Farrell will be in uniform on game days because of their ability to play center and guard.

▪ Patrick Miller, OT. He and quarterback Dylan Thompson were the only 49ers to play every offensive snap Thursday against San Diego. Miller lined up at left tackle throughout training camp and the preseason. His release bodes well for rookie Trent Brown to make the roster. Alex Boone is the emergency backup at left tackle; Brown could have that role at right tackle.

▪ Wheeler, LB. He dealt with a hamstring injury for most of training camp. Wheeler had a strong outing in the exhibition finale that included a sack. NaVorro Bowman, Michael Wilhoite and Nick Moody are locks at inside linebacker. Nick Bellore and Shayne Skov are on the bubble.

Matt Barrows: @mattbarrows, read more about the team at