Today's round was eventful for both chess and non-chess reasons. First, the latter. The story is probably continuing to develop, but here (HT: Allen Becker) is the initial report. In brief, Daniil Dubov was in "close contact" with someone infected with COVID, but when he was given the quick test the results were negative. Despite that, he didn't show up for his game with Anish Giri, possibly because he was required to wear a mask but didn't want to - something he had told the organizers even before the event that he wouldn't do. Giri came to the board, wearing a mask of his own, played 1.d4, and won by forfeit. If the story has developed beyond this point, please let me know.
Now to the chess. Magnus Carlsen is now the sole leader of the tournament. Entering the round he was tied with Vidit Gujrathi and Shakhriyar Mamedyarov for the lead. He won fairly comfortably against R. Praggnanandhaa, while Mamedyarov drew a spectacular game with Richard Rapport and Vidit lost to Jorden Van Foreest. Carlsen is thus in clear first with 5/7, half a point ahead of Mamedyarov and a point ahead of Vidit, Rapport, Giri, and also Andrey Esipenko. Esipenko drew with Sam Shankland, and wasn't far from a win that would have put him into a tie for second.
A further half a point behind, at 50%, there's Van Foreest (the defending champion), along with Fabiano Caruana (who won a shaky game against Jan-Krzysztof Duda) and Sergey Karjakin (who may have missed a win against Nils Grandelius).
Duda and Shankland are on -1, Dubov and Praggnanandhaa are at -2, and Grandelius is alone in the cellar with a -3 score.
The games, with my comments, are here, and these are the pairings for round 8, tomorrow: