After criticism on social media, world number 25 Dayana Yastremska apologised for images of herself in blackface.
Novak Djokovic believes there is an agenda behind the criticism he has faced in the wake of the ill-fated Adria Tour event.
Rafael Nadal has entered the Madrid Open, a move that raises the question of whether he intends to play the US Open.
World number 81 Frances Tiafoe announced he had contracted COVID-19 on Saturday, having played in Friday's opening session.
When the 2020 tournament begins in September, French Open organisers hope to see Roland Garros at least half full.
Boris Becker and Nick Kyrgios were involved in a tense Twitter stand-off over the Australian's criticism of Alexander Zverev.
Wimbledon has thrown up some of the great sporting drama, but the state of the world means we must wait until 2021 for the next instalment.