Glenn Dorsey signs 2-year extension

The 49ers signed DT Glenn Dorsey to a two-year contract extension through the 2016 season. Michael Zagaris/San Francisco 49ers/Getty Images

SANTA CLARA, Calif. -- The San Francisco 49ers signed defensive tackle Glenn Dorsey to a two-year contract extension worth nearly $11 million through 2016, though he is recovering from a potentially season-ending injury to his left biceps for which he had surgery on Aug. 4.

As part of the pact, Dorsey received a signing bonus of $2,075,000 up front and $500,000 of his $2.3 million salary for 2014 will be guaranteed, a league source told ESPN.com's Field Yates. His base salary for this season was previously non-guaranteed. The total value of the new deal could reach $10.975 million, the source said.

Dorsey, 29, played in all 16 of the 49ers' games last season, starting 13 times, and had two sacks with the team crediting him with 100 tackles for the first time in his career.

"Glenn is a true pro who has quickly become a valued contributor to our organization both on and off the field," 49ers general manager Trent Baalke said in a statement. "He is a quick study and a very good football player that has earned this extension, and we look forward to his future contributions."

The source said Dorsey will earn $1.5 million in base salary in 2015 and $1.8 million for 2016, though neither is guaranteed. He also has an offseason workout bonus of $150,000 for each season plus $200,000 available in per game roster bonuses, meaning that he will be paid $12,500 for each game that he is on the 46-man game-day roster.

The deal also has a $250,000 bonus for each Pro Bowl selection. Additionally, Dorsey has incentives that could escalate to $500,000 if he plays over 65 percent of the defensive snaps in a season.

Earlier in the day, with Alex Boone's holdout entering its fourth week, quarterback Colin Kaepernick was asked if he would like to see some of the money his salary cap-friendly contract gave the 49ers applied to his right guard.

"For me, I tried to do something where we gave them space to be able to get players back now," Kaepernick said. "Who they sign, and what they do with it, is really up to them."

On the surface, it would appear the 49ers chose a defensive lineman over an offensive lineman.

And if Dorsey's recovery from his torn left biceps is not a season-ending deal, he could become a candidate for the injured reserve/designated to return list, which would mean he'd have to miss at least the first eight games of the season.