49ers sign TE Chase Harrell and DB Jared Mayden to futures contracts, waive LS Colin Holba

This site is not endorsed, sponsored by, or affiliated with the San Francisco 49ers or NFL Enterprises LLC. “49ers” is a registered trademark of the Forty Niners Football Company LLC. All team and player names mentioned are registered trademarks of the NFL and their respective organizations. Any use of team names, trademarks, logos, or photos is strictly for descriptive purposes. Content and information sourced from other sites remain the property of their respective owners. Player and team photos are used with permission from USA TODAY Sports Images.