(AP Photo/Themba Hadebe) Pakistan wicketkeeper Muhammad Rizwan watches as South African batsman Heinrich Klaasen plays a shot during the second ODI International cricket match between South Africa and Pakistan in Cape Town, South Africa, Thursday ...

Saim Ayub scored his second century in three games to help Pakistan defeat South Africa by 36 runs in Johannesburg and complete a clean sweep of their three-match ODI series.

Saim Ayub scored 101 from 94 balls as a dominant Pakistan completed a clean sweep of their One-Day International series in South Africa with victory by 36 runs in the third and final clash at The Wanderers on Sunday.

Young opening batsman Saim Ayub's meteoric rise in white-ball cricket continued as the left-handed batsman hit his second century of the series, and his third in five innings, as Pakistan completed a 3-0 ODI series clean sweep against South Africa at the Wanderers Stadium on Sunday.

Saim Ayub was named 'Player of the series' for scoring two centuries in the in the three-ODI series. The youngster took two wickets as well.

Pakistan defended a score of 308/9 to beat South Africa by 36 runs in the final ODI of the season at the Wanderers on Sunday.