Bentancur joins a long list of players in rehab which includes James Maddison, Micky van de Ven, Richarlison, Manor Solomon, Ivan Perisic and Cristian Romero. Postecoglou's problems will be further multiplied in January as Yves Bissouma and Pape Matar Sarr will leave for international duty for Mali and Senegal respectively for the Africa Cup of Nations. Meanwhile, skipper Son Heung-min will be vying for Asian Cup glory with South Korea during the same window.