Alastair Cook has resigned as England Test captain after a record 59 matches in charge.
The 32-year-old Essex batsman took the role in August 2012 and led his country to Ashes victories in 2013 and 2015.
However, during last year's 4-0 Test series defeat in India he admitted to having "questions" over his role.
"Stepping down has been an incredibly hard decision but I know this is the correct decision for me and at the right time for the team," said Cook.
"Playing for England really is a privilege and I hope to carry on as a Test player, making a full contribution and helping the next England captain and the team however I can."
Cook is England's highest run-scorer in Test cricket with 11,057, while his 140 Test appearances and 30 centuries are also England records.