USA TODAY49ers report: Super Bowl window closing for Niners' core?USA TODAYDon't tell the San Francisco 49ers the third time is the charm. A third season in a row with at least a visit to the NFC Championship Game ended in disappointment in 2013 for San Francisco. With a bulk of the team's core group headed toward free agency in ...Vernon Davis reports to 49ers campESPN49ers tight end Vernon Davis reports to training campSI.comVideo shows Vernon Davis reporting to 49ers camp rather than hold outDetroit Free PressNBCSports.com -NFL.com -Niners Nationall 35 news articles »