|Born||07/02/84 in Kalgoorlie|
|Provincial Points||20 (4t)|
|Provincial Debut||2008 v Hawkes Bay|
|Super Rugby Caps||5|
|Super Rugby Points|
|Super Rugby Debut||2012 v Blues|
Tietjens joined the Highlanders for the first time in 2012. He is a current Manawatu player who impressed Highlanders coach Jamie Joseph during the 2011 ITM Cup competition. Born in Australia, Tietjens has played 45 first class games for Manawatu and he will be looking to establish himself in the starting XV of the Highlanders in 2013.