49ers-Titans preview: 5 players with something to prove tonight

Key Points:

• The San Francisco 49ers will open their preseason against the Tennessee Titans, focusing on evaluating players competing for roster spots rather than featuring starters.
• Wide receiver Jordan Watkins is positioned to secure a roster spot and possibly the lead punt returner role, especially with veteran Christian Kirk yet to appear and Junior Bergen waived.
• Rookie Carver Willis is competing for the left guard position, with opportunities to earn more playing time as the preseason progresses, also potentially contributing at center.
• Cornerback Jack Jones, known for his high-risk, high-reward play style, aims to demonstrate more consistency this preseason to earn regular-season snaps amid possible secondary changes.
• Linebacker Nick Martin and defensive tackle Bryson Eason have significant opportunities to prove their value, with Martin needing to show instincts and physicality, and Eason impressing with range and run defense to potentially make the roster.