South Africa's preparations for next week's one-day series against England was given a major boost by a comprehensive victory over a strong Lions line-up at Grace Road.

Despite resting their three most experienced one-day players - captain Graeme Smith, all-rounder Jacques Kallis and wicketkeeper Mark Boucher - the tourists romped to a four-wicket victory with 11.2 overs to spare in the first of two warm-up matches against the Lions.

Dale Steyn and Makhaya Ntini took three wickets apiece, with only Rob Key (51) providing notable resistance in the Lions' 184 all out. Herschelle Gibbs top scored with 81 as South Africa secured a comfortable victory.