An Adelaide teenager was emotional in court as he faced charges over a crash that killed the sister of Socceroos player Awer Mabil.

Bor Mabil, 19, died when the Audi sedan she was in crashed into a fence in the northern suburb of Andrews Farm early on Saturday morning.

Accused driver Akol Akol, also 19, wiped away tears as he faced Elizabeth Magistrates Court today, charged with aggravated driving, causing death by dangerous driving and driving while disqualified.

The sister of Socceroo player Awer Mabil, Bor, was killed in a horrific car crash while he was playing for the national team overseas. (Supplied)

He did not apply for bail and was remanded to reappear before the court in March.

Police allege a second car, a green Toyota Avalon, was "travelling in company" with the Audi when the car crashed.

Another driver, an 18-year-old woman from Gawler West, was charged with causing death by dangerous driving.

She was granted police bail and will also appear before the court in March.

The 19-year-old died when the car she was in crashed into a fence in northern Adelaide. (9NEWS)

Mabil was unaware of his sister's death during Australia's Asian Cup quarter-final 1-0 loss to UAE early on Saturday morning.

He has scored four goals in seven matches for Australia since debuting against Kuwait in October, including two strikes in the Asian Cup.

The siblings' parents fled from Sudan in 1994 and he grew up in a Kenyan refugee camp before coming to Australia.

Two people have since been charged over the fatal crash, with Ms Mabil's family left devastated by her death. (9NEWS)