England sealed a tense victory over Sri Lanka in the third and final Test to record their first overseas series sweep in 55 years.
Spinners Jack Leach and Moeen Ali took four wickets each to help England win the third Test by 42 runs.
England needed just 30 minutes on the fifth day to take the final three Sri Lanka wickets.
Sri Lanka need another 75 to win with three wickets and three sessions in hand.
Joe Root reached his 15th Test ton soon after tea, making the sweep and reverse sweep valuable weapons, as he hit 10 fours and two sixes.
Joe Root believes England will go into the second Test against Sri Lanka at Kandy with huge amounts of confidence.
Virat Kohli might not be the top run-getter in ODIs in 2018 but his numbers tower over all of his rivals.
England won the 4th ODI match by 18 runs (DLS method) against Sri Lanka.
England's 31-run win against Sri Lanka -- on the Duckworth-Lewis-Stern method -- puts them 1-0 up with three ODIs to play.
Shane Warne said that Joe Root is England's best player but would be disappointed with his conversion rate when it came to hundreds.
World number one England had handed ODI debuts to fast bowler Olly Stone, 25, and left-arm spinner Liam Dawson, 28, leaving out both Curran brothers.
England have two warm-up games in October and November before facing Sri Lanka in the first of three Tests in Galle starting on November 6.
England stand a point behind Australia and South Africa, who share 106 points each in the Test rankings.
India captain Virat Kohli said that the final scoreline of 1-4 is not a true reflection of how Team India competed in the five-match Test series.
England beat India by 118 runs in the fifth and final Test sealing the five-match series 4-1.
Highlights India vs England: England defeated India by 118 runs on the final day of the Oval Test to clinch the 5-match Test series 4-1.
Alastair Cook (147) and Joe Root (125) were the standout performers for England on the fourth day of the fifth Test.
Highlights India vs England: Alastair Cook stars with the bat on his farewell Test while England pacers James Anderson and Stuart Broad picked up early wickets to put India on the back-foot at end of Day4.