The San Francisco 49ers and Levi Strauss & Co have reached an agreement for a $220 million, 20-year naming rights deal for the team’s future stadium in Santa Clara.While the stadium will be in the heart of technology-rich Silicon Valley, the San Francisco-based apparel company will hold the name: Levi’s Stadium. The proposal will be submitted to the Santa Clara Stadium Authority for final approval Thursday.The upcoming season will be the 49ers’ last at historic Candlestick Park in San Francisco. The team is planning to move to the new $1.2 billion stadium, about 45 miles south in Santa Clara and adjacent to the 49ers practice facility, for the 2014 season.Barber to retireDefensive back Ronde Barber is retiring after 16 NFL seasons. The 38-year-old played his entire career with Tampa Bay, was selected to the Pro Bowl five times and is the franchise leader in interceptions with 47. He also scored eight touchdowns and had 28 sacks in 241 games.Briefly • Browns: Offensive tackle Rashad Butler, who spent the last four years with the Texans but only played in two games over the past two seasons because of two tears in his right triceps, agreed to terms. • Seahawks: Free agent linebacker Leroy Hill won’t be charged with a felony for his January domestice violence arrest after the King County prosecutor’s office couldn’t find sufficient cause to go forward. • Cardinals: Construction is under way and a late-summer completion date is targeted for a $4.2 million, 78,000-square-foot indoor practice facility in Tempe, Ariz. • Patriots: Tight end Rob Gronkowski will need a fourth operation to change the plate in his twice broken left forearm, according to the Boston Herald. If a lingering infection in his arm has been flushed out, the plate will be replaced. If there is still infection, doctors will wait. • Redskins: A man from Texas paid $15,000 for a pair of pink cleats worn by Robert Griffin III in a game last season and 18 people paid $1,000 each to pose with Griffin for a photograph he will sign as the Redskins’ quarterback raised $33,000 during a fundraising auction for the American Cancer Society.