Marcus Lattimore has signed a four-year contract with the San Francisco 49ers.

Lattimore was considered a steal for the 49ers in the fourth round, but he is still recovering from three torn ligaments and a dislocated right knee.

"I just want to train as hard as I can," Lattimore said. "But I understand why they want me to slow down."

Lattimore said that being around Frank Gore is inspiring as he overcame major knee surgeries in college.

"It was great to finally meet him in person," Lattimore said. "He's been wonderful to me."

With Michael Crabtree out for a significant amount of the 2013 season with an Achilles tear, the San Francisco 49ers are hoping Colin Kaepernick and Vernon Davis improve their chemistry.

Davis caught six passes in Kaepernick's debut as starter against the Chicago Bears, but only had seven receptions over the next seven games.

Davis had five receptions for 106 yards and one touchdown in the NFC Championship Game and six receptions for 104 yards in the Super Bowl.

"We bond really well. We play, we joke away from the field," Davis said. "That's very important, especially when it comes to having a relationship with your quarterback. You want to be able to joke with this guy.

"It's about what you do away from here. Colin and I are going to work on the field but how's your relationship away from the field. It's always been good. Just like me and Alex (Smith)."

Nate Montana is a longshot to make the roster of the San Francisco 49ers, but he participated in their one-day rookie minicamp on Friday.

Montana also attended the 49ers' rookie minicamp on a tryout basis in early May.

Montana is former backup at Pasadena City College, Notre Dama and the University of Montana.

With Michael Crabtree out for at least a sizable portion of the 2013 season due to a torn Achilles, the San Francisco 49ers could reunite with Randy Moss.

The 49ers had ruled out signing Moss earlier in the offseason.

A source close to Moss indicates he is enjoying spending time with family, but there is little doubt that he would be willing to entertain an offer from the 49ers.

Michael Crabtree suffered a torn Achilles tendon during Tuesday's OTAs and could need season-ending surgery.

Crabtree had a breakout season in 2012, catching 85 balls for 1,105 yards and nine touchdowns.

Crabtree also had 20 catches for 285 yards and three touchdowns in the postseason.

ESPN's Chris Mortensen reports that Crabtree has already undergone surgery.

The San Francisco Bay Area was awarded hosting rights to Super Bowl L in 2016, while Houston will host Super Bowl LI in 2017, commissioner Roger Goodell announced at the NFL's spring owners meetings in Boston on Tuesday.

The 49ers' new stadium in Santa Clara is being built and is scheduled to open for the 2014 season.

The San Francisco 49ers are in talks with Eric Mangini about a consulting position with the franchise.

Mangini's role would be to assist the 49ers' offense in how to prepare to face certain defenses.

Mangini is a former defensive coordinator with the New England Patriots and had head coaching stops with the New York Jets and Cleveland Browns.

Mangini is currently in broadcasting.

Nate Montana accepted an invitation to audition for the San Francisco 49ers over an offer from the Cincinnati Bengals.

Montana is working on learning the West Coast offense that his father, Joe Montana, helped make so successful in the 1980s.

"A lot of concepts are similar to other places, but it's just learning the language," Montana said. "So it take some time and getting used to."

Montana went undrafted out of West Virginia Wesleyan.

Levi's has agreed to a 20-year, $220 million naming rights deal with the San Francisco 49ers.

The 49ers will move into Levi's Stadium in 2014 and could host Super Bowl L in 2106.

The 49ers have played at Candlestick Park since 1971, which was named 3Com Park and Monster Park at various times.

"Levi's jeans were designed for the 49ers during the gold rush," said Jed York. "It was a good fit for them then and it's a good fit today."

Apple, Google, Oracle and Facebook are four of the richest companies in the world and are all headquartered near the 49ers' new stadium.

Mike Iupati underwent surgery on his shoulder this offseason and is unlikely to participate in upcoming OTA sessions with the San Francisco 49ers.

Iupati started every game of 2012 at left guard and was both an All-Pro and Pro-Bowl selection.

Iupati is expected to sign a long-term deal with the 49ers at some point over the next 12 months.