Kane Williamson has announced his retirement from international cricket effective immediately, bringing an end to a remarkable 16-year career that has spanned all formats of the game. The announcement came while New Zealand was actively competing in a Test series against England, meaning Williamson will not complete the current matches.

The 35-year-old finishes his international career as New Zealand's all-time leading run-scorer with 19,346 runs across 378 appearances, including 48 centuries. His Test record stands out as particularly impressive, with 110 matches played at an average of 54. Despite also finding success in limited-overs cricket, Test cricket remained his strongest format.

Williamson's final Test appearance came at Lord's, where he scored just 0 and 18 on a difficult batting surface. While the poor conditions contributed to his low scores, this match ultimately marked the end of his international involvement.

In a statement, Williamson explained his decision: "I've thought about it for a while, but over the last few days it's become clear now is the right time. I've always felt a strong drive and hunger for international cricket, and I take pride in knowing I've given it my all in every match I've played for New Zealand. Continuing with anything less wouldn't be right and I feel fortunate to step away on my own terms."

Williamson began his Test career in 2010 with a century on debut in Ahmedabad. He was later named one of cricket's most promising talents alongside Virat Kohli, Joe Root and Steve Smith. He topped the Test rankings for the first time in 2015 and was subsequently named a Wisden Cricketer of the Year.

His captaincy brought significant achievements, including leading New Zealand to victory in the inaugural World Test Championship final in 2021. He also guided his country to the T20 World Cup final in the same year, though they fell short against Australia. His leadership extended beyond international cricket, as he captained Sunrisers Hyderabad to the 2018 Indian Premier League final.

However, signs of his impending departure had emerged earlier. Williamson declined a New Zealand central contract in 2024, reducing his international commitments, and joined Lucknow Super Giants in the IPL in an advisory capacity.

New Zealand head coach Rob Walter praised Williamson's contributions: "His numbers and batting skills speak for themselves, but it's what he means to this Black Caps team, as well as world cricket - that will be his legacy. His impact on the culture and standards of this team will remain embedded in its DNA."

New Zealand will now face the remainder of the England series without one of their greatest players, heading to the Oval for the second Test already trailing 1-0.