The National Basketball Association is in the middle of its championship series. The Golden State Warriors have won three games. The Cleveland Cavaliers have won two. The first team to win four games will be the NBA champion. Game 6 is Thursday night in Cleveland. If Steph Curry and Golden State win the game, the series will be over. The Warriors will be the league champions for the second season in a row. ESPN is the broadcaster that produces the games for television in the U.S. Because the series could end on Thursday night, ESPN made a unique announcement on Wednesday. It trended on social media. Craig Sager, a long-time reporter for a rival television network, is going to be a guest reporter. That is because he has never covered a Finals game. And this could be his last chance to do it. Sager has a blood cancer called leukemia. He will be 65 years old later this month.