JOHANNESBURG, Jan 19 (Reuters) - Democratic Republic of Congo players have returned to training ahead of the African Nations Cup after a two-day strike following a row with the country's football federation over bonus payments. The players refused to train on Thursday and Friday in an attempt to get the promised money pushed through before they begin their campaign in South Africa on Sunday. Manager Claude Le Roy said he had spoken with the head of the Congo federation and the players were satisfied with the latest guarantees.