Cristiano Ronaldo's Unmatched Longevity: Teddy Sheringham's Insights

Teddy Sheringham has seen enough elite forwards to know when one is built differently. And in his eyes, Cristiano Ronaldo is so far removed from normal that the idea of him playing into his 50s no longer sounds like a joke. It sounds like a genuine possibility.

The former England striker believes Ronaldo’s body and mindset could carry him to an age that belongs more to veterans’ leagues and charity matches than to serious competition. At 41, the Al-Nassr star is still chiselled, still obsessive, still living the life of a player at his physical peak.

Speaking to BOYLE Sports, Sheringham laid it out plainly. Look at Ronaldo’s body. Look at how he moves. Look at the work behind it.

He pointed to the support system Ronaldo has built around himself: a personal training team in place for around 15 years, the constant monitoring, the refusal to let standards slip even as the trophies and goals piled up. That structure, Sheringham argued, is what keeps him “fit as a fiddle” when most of his contemporaries have long since disappeared from the top level.

Ronaldo’s regime is the stuff of legend. Restrictive diets. Cryotherapy. Tailored recovery sessions. An almost joyless dedication to marginal gains that has allowed him to stay prolific deep into his 40s, while most forwards bow out in their mid-30s with creaking knees and fading pace.

Instead, the five-time Ballon d'Or winner is still preparing to lead Portugal into another World Cup, this time in North America in 2026. The ambition has not dimmed. Neither has the workload.

Sheringham is convinced the fire still burns. Ronaldo plays in the Saudi Pro League now, a competition that cannot match the intensity or depth of Europe’s top divisions, but he continues to score at a rate that demands attention. As long as the goals keep coming and clubs keep calling, Sheringham sees no reason for him to walk away.

“He has an air of invincibility about him,” Sheringham said, highlighting not just the numbers but the aura that still surrounds the Portuguese forward. The presence. The fitness. The belief that he can decide games almost at will. For Sheringham, those ingredients add up to several more years of Ronaldo on the pitch.

What he does not see, though, is a return to the European elite.

Ronaldo has already completed that circuit. Titles in England with Manchester United, in Spain with Real Madrid, in Italy with Juventus. Champions League crowns. Golden Boots. Iconic nights in front of the Bernabéu, Old Trafford, and beyond. That chapter, in Sheringham’s view, is closed for good.

Even the romantic notion of a late reunion with Jose Mourinho at Real Madrid does not sway him. Mourinho is back at the club where he and Ronaldo once clashed and conquered, but Sheringham is adamant: there will be no second act for Ronaldo in Europe. The landscape has shifted. The financial models, the tactical demands, the squad-building priorities of top clubs no longer align with signing a 40-something superstar, no matter how meticulously he looks after himself.

If Ronaldo does decide he has had enough of the Middle East, Sheringham sees only one logical next step: America.

The pull of MLS is obvious. Lifestyle, marketability, a league growing in profile but still some distance from Europe’s elite. Lionel Messi has already crossed the Atlantic and transformed the spotlight on the competition. Adding Ronaldo to that stage would be a seismic moment for football in North America.

Sheringham believes Ronaldo would “light MLS up,” the same way he has lit up every other league he has entered. The goals, the crowds, the commercial impact – all of it would follow. The question, in his eyes, is not whether Ronaldo could dominate there, but whether he wants that experience before he finally calls time on an extraordinary career.

For now, the reality is simpler. Ronaldo remains the face of the Saudi Pro League and the standard-bearer for Portugal. The 2026 World Cup looms, with Portugal opening their campaign on Wednesday against DR Congo in Group K, and the veteran forward still at the centre of it all.

Most players his age are long retired, easing into punditry or coaching, occasionally dusting off the boots for a testimonial. Ronaldo is still chasing trophies and records, still being talked about as a man who might play on into his 50s.

Once, that would have sounded ridiculous. With Ronaldo, and with the way he has bent the rules of longevity to his will, it no longer does.