Siyabulela Mbali Shai (born 18 March 1993) is a South African soccer player who plays as a midfielder for Platinum City Rovers in the National First Division.

He hails from Wattville and is a son of Mamelodi Sundowns player Isaac Shai. Siyabulela Shai too was given a chance at Mamelodi Sundowns,^[1][2] but was loaned out to several clubs. He got his Premier Soccer League debut on loan at Chippa United in 2014.^[3] In 2015–16 he was on loan at Maritzburg United, but was recalled to Sundowns in January 2016.^[4]

He departed from the Sundowns due to not getting playing time.^[5] He surfaced at the club EC Bees in 2017. The team contested the SAFA Second Division, but was in the round of 32 of the 2016–17 Nedbank Cup.^[6]

Shai stayed in the second tier with Black Leopards and Marumo Gallants without playing regularly.^[7] In 2019–20 he played for VOS Milan in the Regional League,^[8] which was also hampered by the pandemic. A move to All Stars was also put on hold, but in late 2020 he was finally able to restart his career in Sekhukhune United.^[9] The club was promoted to the 2021–22 South African Premier Division, which marked Shai's return to the first tier after a several-year absence. He did not play often in 2021–22, however, and was accused of "off-the-field antics".^[10][11] He got more playing time in the 2022–23 season, but afterwards left for Platinum City Rovers.^[7]