|Full name||Nicholas John Konrad de Jager|
|Date of birth||7 February 1990|
|Place of birth||Johannesburg, South Africa|
|Height||1.93 m (6 ft 4 in)|
|Weight||112 kg (17 st 9 lb; 247 lb)|
|School||St. John's College, Johannesburg|
|Rugby union career|
De Jager played Varsity Cup rugby with Stellenbosch-based university side Maties in 2012 and 2013. In 2012, he made six appearances during the competition to help Maties all the way to the final. He also featured in the final, coming on as a late replacement, but could not prevent his side losing 21-29 to UP Tuks in Pretoria. He made three appearances in the round-robin stage of the 2013 Varsity Cup, which again saw Maties lose to UP Tuks in the final.
He then moved to English Premiership side Saracens in late 2013. He was included in their squad for the 2013-14 LV Cup and made two appearances for the side. His first class debut came in their 41-8 victory over the Newcastle Falcons, where he was named Man of the Match. He made a further two appearances in the competition, a 16-20 defeat to Northampton Saints in the last round of the pool stages and a 7-26 defeat to the same opposition in their Quarter Final clash.
He made a further six appearances in the 2014-15 LV Cup. He scored his first career try in their final pool stage match against the Exeter Chiefs, one of two tries he scored in the match to help Saracens to a 35-18 victory. He also scored a try in the final of the competition - again against the Exeter Chiefs - to help Saracens win the trophy for the first time since 1998.