49ers reach long-term extension with RT Anthony Davis

The San Francisco 49ers have begun locking up their building blocks for the future as Mike Florio of ProFootballTalk.com reports that the team has reached a five-year contract extension with right tackle Anthony Davis.

According to Florio, the extension is worth $37.295 million and includes $17 million in guarantees.

Davis, who selected with the 11th overall pick of the 2010 NFL Draft, has two seasons remaining on a five-year rookie contract that has a maximum value of $26.5 million and included $15.9544 million in guaranteed money. Davis is scheduled to earn $1.7 million in 2013 and $2.3956 million in 2014.

Over his first three seasons in the NFL, Davis has started all 53 regular and post-season games the 49ers have played. According to official playing-time documents, the 6-foot-5, 323-pound right tackle has been a dependable player, missing just 33 of the 49ers' offensive snaps the last three seasons. Davis did not miss a single play for the 49ers during the 2012 season.

Extending the contracts of core players well before they hit free agency has been a staple of the 49ers' front office, whose salary cap and contract negotiations are overseen by COO Paraag Marathe.

In 2009, the 49ers signed left tackle Joe Staley to a six-year extension after the 2007 first-round pick had played just two seasons in the NFL. Staley is currently signed through 2017 and has very team-friendly cap numbers. During the 2012 season, the 49ers signed inside linebacker NaVorro Bowman, a 2010 third-round pick, to a five-year extension worth over $45 million.

The 49ers will have some bigger contract issues to address in the coming years as quarterback Colin Kaepernick, left guard Mike Iupati and wide receiver Michael Crabtree are scheduled to be unrestricted free agents after the 2014 season. Outside linebacker Aldon Smith, a 2011 first-round pick, is also signed through 2014, though the team will likely exercise their option for the 2015 season.