Alastair Cook was in an upbeat mood after England beat South Africa by 6 wickets in the fourth one-day international at Lords on Sunday.
A week that saw England fall 1-0 behind in this five-match series ended with them 2-1 in front after a four-wicket victory across London at The Oval on Friday.
England, who had been knocked off the top spot in all three international formats by South Africa this season are now set to regain their place at the summit of the 50-over world rankings even if the Proteas square the series in Wednesday's finale in Nottingham.
Cook's bowlers backed him up after he won the toss in overcast conditions at Lord's by restricting South Africa to 220 for eight.
Then a stand of 141 between Ian Bell (88) and Jonathan Trott (48) saw England chase down the bulk of their target as they won with 20 balls to spare.
