Abbott, who previously played for Hampshire as an overseas player in 2014, made 10 Test appearances alongside 28 in one-day internationals and 21 in T20 internationals.
It is not only team planning that these departures are hurting.
Du Plessis said CSA needed to take action to prevent a further player drain. Some of us have tried to get hold of him and this is the truth - we got an email from him off his iPhone telling us he's signed a Kolpak deal. It is always going to be a challenge. Rossouw played for the Knights and Royal Challengers Bangalore.
The 29-year-old's last game for his country was the recently concluded second Test against Sri Lanka in Cape Town where he failed to pick a single wicket. "We invest huge sums of money in every individual, and if you take Rilee by way of example, I don't know how many months we have been treating his injuries and investing in him", said chief executive Haroon Lorgat. "Sadly, in this case, there was no return on investment".
Wicketkeeper-batsman Pothas ended his South Africa career after three one-day internationals to play for the county, to whom he gave invaluable service for a decade.
To that end, the CSA cricket committee decided in a meeting on Thursday (January 5) to place a cap on Kolpak players in South African domestic cricket.
As a result of the controversial quota system and the weakening South African Rand, the duo have sought greener pastures which should effectively put an end to their global careers.
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On Thursday, a tearful Kyle Abbott confirmed his retirement from global cricket after just 11 Tests and 49 limited overs matches.
"He's [Abbott] got to look after his future but at the same time I don't think he wants to give up the right to play for South Africa, but that's what he's done and as a outcome we have terminated his contract", Lorgat said.
Hampshire are not commenting on the report, which says they fear a U- turn with Abbott having played in the Proteas' last five Tests since being recalled in November. But it must be playing on some cricketers' minds. South African rugby and a large number of national soccer teams have to combat the same affliction, with players often preferring the razzmatazz of European Leagues compared to duty at continental or even global tournaments.
Although Abbott said that he remained committed to South Africa, Lorgat emphasised that both Abbott and Rossouw have given up their right to play for South Africa. If that was a player of colour who got five noughts, everyone would have said "transformation".
Of course, Kolpak won't go on forever - Britain are expected to leave the European Union in the next few months.
But White is confident they will be more like Neil McKenzie and Nic Pothas, who excelled for Hampshire for 14 seasons, during which they were outstanding mentors to the county's young players, including the likes of James Vince and Liam Dawson.
He misses South Africa's next two Tests in that series.