Dolphins Sign C.J. Anderson, NFL News

The Miami Dolphins have signed Denver Broncos restricted free-agent running back C.J. Anderson to an offer sheet, the team announced Thursday.

Terms of the offer sheet were four years and $18 million, including $10 million guaranteed, a league source told ESPN NFL Insider Adam Schefter.

Already having watched quarterback Brock Osweiler (Texans), defensive end Malik Jackson (Jaguars) and linebacker Danny Trevathan (Bears) depart in free agency, the Broncos have five days to match the Dolphins' offer.

The Broncos are limited in what they can do given their pursuit of several options at quarterback, including a potential trade with the San Francisco 49ers for Colin Kaepernick and a potential free-agent visit by former Washington Redskins quarterback Robert Griffin III, and their attempt to secure a long-term deal with star linebacker Von Miller.

On Thursday, Anderson visited Miami, where former Broncos offensive coordinator Adam Gase is now the head coach. Gase knows Anderson well and has lauded the running back's potential as a full-time runner.

Several teams reportedly were interested in the 25-year-old Anderson, including the New England Patriots and the Bears. He was tendered a one-year, $1.671 million deal, with the Broncos holding right of first refusal. That means the Broncos can match any other offer, but they won't receive compensation if they don't.

Osweiler Happy To Be With Texans

Texans quarterback Brock Osweiler said leaving Denver was the most difficult decision of his life, but he did it to further his career.

"I'm very thankful, I'm very appreciative for everything that the Denver Broncos organization has done for me," Osweiler said. "However, in saying that, at this point in time in my career, I feel like the Houston Texans give me the best opportunity to be successful.

"From the top down, starting with the McNair family and then moving on down to the coaching staff, and with [offensive coordinator George] Godsey and coach [Bill] O'Brien and the offensive attack that they have here, I feel like their offense fits my skill set very well, and I'm very excited to play in that offense."

Osweiler left the Broncos one month after their Super Bowl championship after spending four seasons there. He was selected by Denver in the second round of the 2012 draft. The Texans paid him a contract worth $72 million over four years with $37 million guaranteed, hoping to gain stability at the quarterback position for the first time in four seasons.