Joe Root and Jos Buttler laid the platform for England's dominant 122-run win over Sri Lanka in the fifth and final one-day international in Cardiff on Saturday.

Root top-scored with 93 as England made 324 for seven.

Together with man-of-the-match Buttler, who made a typically rapid 70, he put on 109 for the fifth wicket.

Sri Lanka's chase never got going and they were bowled out for 202 with more than seven overs to spare.

That gave England a convincing 3-0 series win, with one tie and one no result.

It was further proof of the progress England ha made in ODI cricket since their humiliating first-round exit from last year's World Cup, which included a nine-wicket thrashing by Sri Lanka in Wellington.

SCORES IN BRIEF

ENGLAND: 324 for 7 in 50 overs (Root 93, Butler 70; Gunathilaka 3-48)

SRI LANKA: 202 all out in 42.4 overs (Chandimal 53; Willey 4-34, Plunkett 3-44)

Result: England won by 122 runs