The two presidents' virtual conversation also touched on other disputes, amid Western fears that Russia is about to invade southern neighbor Ukraine.
The Beijing embassy in Washington said in a Twitter message that the boycott "only seeks to politicize sport, create divisions and provoke confrontation."
They are charged with murder in connection with the campus massacre. Prosecutors say the Crumbleys bought the gun for their son as a Christmas present.
A new Ômicron variant of the coronavirus shakes markets, fearful that the strain could threaten the attempted economic recovery.
Secretary of State Antony Blinken said that NATO is prepared to impose severe costs on Moscow in the event of an attempted invasion.
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