Quinton de Kock will lead South Africa in the last two ODIs against Sri Lanka in the absence of regular captain Faf du Plessis. Jean Paul Duminy on the other hand, will captain the Proteas in the sole T20I, said Cricket South Africa on Tuesday.De Kock will be leading his country out for the first time and he said that it is an honour to lead his country but he is quite nervous about it as well.”To be honest, I am feeling quite nervous. It is an honour to be given this responsibility of captaining the Proteas,” de Kock said.”I want to carry on where Faf has left off and to continue with his legacy. As a captain, I will try to stay true to myself and stay true to what I believe it takes to be a good leader. I will strive to help others going forward, just to be there as a captain.”The team performance at the moment speaks for itself,” de Kock said on the Proteas’ 3-0 lead in the five-match series.#CSAnews De Kock and Duminy to lead Proteas in Fafs absence https://t.co/EJHbnMFrGw #ProteaFire #SLvSA pic.twitter.com/owJQ65IldxCricket South Africa (@OfficialCSA) August 7, 2018Du Plessis injured his shoulder on Sunday in the third ODI against Sri Lanka which South Africa won by 78 runs to clinch the five-match series.The 34-year-old hurt his shoulder while diving for a catch and played no further part in the match. Later, after further scans, Du Plessis was ruled out of the entire series.advertisement”Faf sustained an injury to one of the rotator cuff tendons in his right shoulder and will unfortunately be unavailable for the rest of the tour,” team manager Mohammed Moosajee said in a media release from Cricket South Africa on Monday.”He will need a rehabilitation period of up to six weeks to make a full recovery.”The South Africans hold an unassailable 3-0 lead in the five-match series, with the fourth game scheduled for the Pallekele International Cricket Stadium on Wednesday and the fifth being played at R. Premadasa Stadium on Sunday.The a one-off T20I in Colombo will be played on August 14 and that will close the tour, which included two Test matches that were convincingly won by the home side.South Africa’s next assignment will be a home limited overs tour by Zimbabwe starting in late September.