England batsman Andrew Strauss has vowed to bounce back from a lean spell and prove himself in the one-day game. He has had a meteoric rise as a Test opener but has not found runs as easy to come by in his role at number four in the limited overs side.
"I am trying to become as consistent as possible but these things do not happen overnight," said Strauss.
"I have got myself in a couple of times, then got myself out without really pushing on."
Strauss made a one-day century against West Indies at Lord's last summer but has only managed 69 runs in four innings during the current one-day series in South Africa.
 | It is just as important to have a strong England one-day side as a Test side  |
And he has not passed 50 since his unbeaten 52 off 42 balls saw England home in last September's ICC Champions Trophy semi-final against Australia.
"I feel I am hitting the ball as well as I did in the Test series. It's frustrating not to get a score both personally and for the team because I play quite an important role in the middle order.
"It is a learning curve for me - it is a role I can play, I enjoy it and hopefully I can be as successful as I have been in Test cricket," Strauss added.
"There is no point putting pressure on yourself by saying 'I need a hundred tomorrow'. I am certainly not losing any sleep at night."
South Africa lead the series 2-1 with three to play after ending a dismal run of only one win in 14 matches. "They have got that monkey off their back, but we have a side that can beat them," said Strauss.
"If we play to our potential, we have shown snippets in this series of some excellent one-day cricket.
"This is a big series for us. If we want to develop leading to World Cup 2007, we need to make use of every series to improve and it is just as important to have a strong England one-day side as a Test side."