Jamie Overton sat out the last match as South Africa completed a 5-0 whitewash of England in the under-19 one-day international series.
Overton was able to bowl only one over as South Africa won the previous match in Stellenbosch on Tuesday, having been struck on the thigh when batting.
In his absence, England suffered their heaviest defeat yet in a chastening series, going down by nine wickets with more than 16 overs remaining in Cape Town today.
England posted 210 for eight off their 50 overs, with Dominic Sibley (84) and Ed Barnard (53) making half centuries.
South Africa's openers made light work of the run chase. Clyde Fortuin was dismissed for 99, when his side were just 12 runs from victory, while Murray Coetzee finished on 103 not out.
Overton played in three of the matches and hit his highest score for England, 48, in the 12-run defeat in Cape Town on Friday. He finished the tour with 92 runs at an average of 46.
He took only one wicket but recorded an impressive economy rate of 3.93 after sending down 16 overs.
Overton, 18, from Northam, is due to come home this weekend but then head back to South Africa with Somerset on March 2 for a week-long training camp.
Craig Overton is set to play for England Lions in their third one-day international against Australia A in Hobart, Tasmania, tonight (11.30pm GMT).
Emily Ward and Alli Kelly helped Devon under-19s to their first win in the Under-19 Women's Arch Trophy in Dubai today.
Filleigh bowler Ward took four wickets for 33 runs and Kelly, the North Devon wicketkeeper, executed three stumpings as Durham, replying to Devon's 201 for six off 40 overs, were bowled out for 146 to lose by 55 runs. Kelly and Hatherleigh's Frances Lausen both made ducks in the Devon innings.
Yesterday, Devon were bowled out for 83 in a 113-run defeat to the MCC Development team. Kelly and Lausen both made one, Filleigh's Anna Squire scored two and Ward finished unbeaten on 11 after bowling seven wicketless overs for 37 runs.