Can Chelsea really rely on a nearly 40-year-old Cristiano Ronaldo to escape the crisis? The four-game winless streak has made this Premier League powerhouse struggle, with their fourth-place position in the league table precarious and their Champions League qualification seemingly waving goodbye. At such a critical moment, the management has put forward a plan to sign Ronaldo - is this transaction a "sure-kill move" for a desperate counterattack, or is it shooting oneself in the foot? Let's delve into the ins and outs of this "big gamble." When we talk about Ronaldo, what comes to mind is not the image of an ordinary player. Five Ballon d'Or awards, countless highlights, and a superstar who has shaken the global football landscape - these are his labels. But at the end of the day, the former teenage star has entered the "twilight" of his career, and competitive sports are so realistic that age is an obstacle you cannot avoid. So, how does Chelsea plan to spend a whopping salary of up to 30 million euros to loan Ronaldo to save their season? From a competitive perspective, what Chelsea lacks now is a player like Ronaldo with a "never-give-up spirit." After four rounds of winless Premier League matches, the team's morale has almost hit rock bottom; lacking a core leader, the team's tactics also appear chaotic and disorganized. From a spiritual level, Ronaldo's arrival can obviously inject strong confidence and serve as a role model for Chelsea. Don't forget, he once scored 31 goals in a single Premier League season. Although his speed…