The San Francisco 49ers face significant challenges as training camp begins, with star players Trent Williams and Brandon Aiyuk both threatening holdouts due to contract disputes. Williams has been placed on the reserve/did not report list, indicating serious concerns over his dissatisfaction with his $20 million salary. Meanwhile, Aiyuk, in the final year of his contract, has requested a trade amid negotiations for a new deal, though the team’s initial offer of $26 million per year remains on the table. Quarterback Brock Purdy, who has had a successful start to his career, is also under pressure as he anticipates a major contract extension next offseason, potentially exceeding $60 million annually. The 49ers must navigate these contract issues while preparing for the upcoming season, as both players are vital to the team's success. The situation is compounded by the team's limited depth and the need for Purdy to step up as a leader amidst the uncertainty.