Standing at 6ft 6ins, and 18st, Diack has brought a substantial physical presence to Ulster's back row since joining the club at the start of the 2008/09 season from South African franchise the Stormers.
The No. 8 is an intelligent reading of the game and has demonstrated his outstanding skill set from the base of the scrum and in the loose. He is equally comfortable when occupying the other two positions in the back row.
In October 2010 Diack signed a new contract keeping him with Ulster until June 2014.
|DOB||12th Nov 1985|
|Birthplace||Johannesburg, S Africa|
|Height||1.96 m (6' 5")|
|Weight||110 kg (17 st 4 lb)|