Mamelodi Sundowns got off to a winning start at the Club World Cup in a match delayed by a weather warning and played before empty stands.

Iqraam Rayners scored from point-blank range in the 36th minute to give Mamelodi Sundowns a 1-0 win over Ulsan HD after an hour-long weather delay in the group stage of the Club World Cup.

Masandawana and the Tigers came into the game with an eye on top position in Group F after Borussia Dortmund and Fluminense shared spoils earlier.