game. a high-profile ukrainian athlete is urging an end to the wor. former boxing heavyweight wladimir klitschko posted this sobering message. >> you need to act now to stop russian aggression. with anything you can have now. in an hour or by tomorrow is going to be too late. please get into action now. don't wait. act now. stop this war. >> the boxing legend's brother, vitaly, is the mayor of ukraine's capital, kyiv. he's also a former boxing champion. "saturday night live" is also showing its solidarity with ukraine. the program replaced its typical opening comedy sketch with this. ♪ ♪