End of an Era: Cristiano Ronaldo Bows Out of International Football at 41.

Portuguese football icon Cristiano Ronaldo has officially announced his retirement from international football at the age of 41, bringing down the curtain on one of the most remarkable careers the sport has ever witnessed.

The five-time Ballon d'Or winner made the announcement on Thursday through an emotional video posted on his Instagram account, ending a 23-year journey that began in August 2003 and saw him become the most capped player and highest goalscorer in men's international football history.

Ronaldo departs the international stage having earned 234 caps for Portugal and scored a world record 146 goals numbers that may never be matched.

"To the Portuguese people, the day has come for me to hand back the number seven shirt of our national team," Ronaldo said in the video, which featured highlights from his illustrious career. "I never felt it belonged to me alone, but for 23 years I had the privilege and the responsibility of wearing it, defending it and carrying it with me into stadiums all around the world."

He added: "Today the time has come to pass it on to the future. It was not an easy decision, because some decisions are not made with the mind alone they are also made with the heart. A journey that began in August 2003 and changed my life forever has come to an end."

The announcement comes after a turbulent period for the veteran forward. His powers had visibly waned in recent years, and last month he fell out with national coach Jorge Jesus after the manager refused to play him in a Nations League match. Ronaldo left the team camp immediately and was handed a 30-day suspension, fuelling speculation about his future in the national setup.

The high point of his international career came in 2016 when he captained Portugal to European Championship glory in France, defeating the hosts in the final despite being forced off with an injury during the match.

At this year's World Cup co-hosted by the United States, Canada and Mexico, Ronaldo scored three goals, but Portugal were eliminated in the Round of 16 by eventual champions Spain.

Ronaldo's retirement marks the end of an era for Portuguese football and for the sport at large. From a teenage prodigy who made his debut in 2003 to a record breaking veteran, his international journey has been nothing short of extraordinary.

As he passes the number seven shirt to the next generation, Portuguese fans will now look to a future without their talisman but the legacy he leaves behind is one that will endure for generations.