'Certain Opinions from Australia Very Unnecessary': Dominic Thiem Takes a Dig at Nick Kyrgios

World number three Dominic Thiem said on Monday tennis players "must learn" from the ill-fated Adria Tour and described Nick Kyrgios' criticism of those who took part as "unnecessary". Thiem played in the Belgrade leg of last month's ill-fated tournament organised by world number one Novak Djokovic. "We have to learn from the mistakes and be careful nowadays with this pandemic we are facing. That's what we have to take...