First, Novak Djokovic lost to Alex de Minaur in straight sets, and there are concerns about his wrist injury. Then, Natalija Stevanovic, who replaced the exhausted Olga Danilovic, was helpless against Ayla Tomljanovic, losing 6-1, 6-1. The next match will be a recreational mixed doubles match. In the meantime, Djokovic has addressed his problematic wrist ahead of the Australian Open. Australia will play against the winner of the match between Greece and Germany in the semifinals of the ATP Cup. In the second paragraph, the text may continue with the next topic or event.