Today in the ongoing Super Smash T20 tournament Canterbury's Leo Carter hit six sixes in an over of Northern Districts' spinner Anton Devcich. He became only the fourth player to hit six sixes in an over in T20I format and overall seventh batsman to achieve this milestone in professional cricket. Here is the list of all players who have achieved this milestone in their careers. 

List of players who have hit six sixes in an over -

1. Sir Garry Sobers (Nottinghamshire) vs Malcolm Nash (Glamorgan), 1968

2. Ravi Shastri (Bombay) vs Tilak Raj (Baroda), 1984

3. Herschelle Gibbs (South Africa) vs Daan van Bunge (Netherlands), 2007

4. Yuvraj Singh (India) vs Stuart Broad (England), 2007

5. Ross Whiteley (Worcestershire) vs Karl Craver (Yorkshire), 2017

6. Hazratullah Zazai (Kabul Zwanan) vs Abdullah Mazari (Balkh Legends), 2018

7. Leo Carter (Canterbury) vs Anton Devcich (Northern Districts), 2020

* Sir Gary Sobers and Ravi Shastri hit six sixes in First-Class matches, Herschelle Gibbs in ODI World Cup, Yuvraj Singh in T20I World Cup and Ross Whiteley, Hazaratullah Zazai and Leo Carter hit in domestic T20 matches.