Ireland have selected the four players who will take part in the ICC High Performance Winter training camp in Pretoria.
The camp will be run under the auspices of the ICC, and was run very successfully last year for the first time.
Ireland's participants are Kenny Carroll, Kevin O'Brien, John Mooney, and William Porterfield, who have all been selected in the 15 for both the World League and World Cup.
The camp runs from October 2 through till November 17.
Ireland coach Adrian Birrell said of the four nominees: 'It's a wonderful opportunity for all four players to improve both their techniques and fitness levels. One only has to look at the improvements in players who have attended this and similar camps in the past.
'This time last year Kenny Carroll was very much on the fringes of the Ireland set up, and now he is a vital part of our squad. I hope the players use the camp wisely, and get themselves prepared properly for a vital 3 months in the history of Irish cricket.'