The San Francisco 49ers announced they have signed CB Phillip Davis to a three-year deal. Davis (5-10, 173) played collegiately at Tulane, appearing in 46 games (30 starts), tallying 123 tackles, four interceptions, two fumble recoveries, 1.0 sacks, 2.5 tackles for loss and 20 passes defensed. He also registered five punt returns for 24 yards. [...]