Mixed team snowboard cross is a variation on that chaotic event that is making its Olympic debut this year.Each team consists of one man and one woman. The men go first, then the women start in a staggered fashion, based on how the men finished in their race. Meanwhile, the U.S. men's hockey team faces Canada.Here are some things to watch:SnowboardingLindsey Jacobellis has won her second gold medal of the Olympics, teaming with 40-year-old Nick Baumgartner for the title in the new event of mixed snowboardcross.The 36-year-old Jacobellis took gold earlier this week in the women’s event; it came 16 years after a late showboat move as she was cruising in for an apparent win cost her the title at the Turin Games.After a slow start, the U.S. now has five gold medals and 11 overall at the Games. Jacobellis accounts for two, while snowboarder Chloe Kim has another.The Italian team of Omar Visintin and Michela Moioli came in second and the Canadian duo of Eliot Grondin and Meryeta O’Dine finished third.HockeyBrendan Brisson scored his second goal of the tournament and Strauss Mann made 35 saves to help the United States beat Canada 4-2 in men's hockey at the Olympics.The young Americans went hit for hit with the bigger, stronger and more experienced Canadians. The victory puts the U.S. in the driver's seat to win the group and earn a spot in the quarterfinals.Beating Germany on Sunday would accomplish that and could make the U.S. the top seed in the knockout round. Canada goaltender Eddie Pasquale allowed two bad goals in the loss.Ice Dance The Americans have a chance to earn two ice dance medals in the same Games for the first time. Madison Hubbell and Zachary Donohue finished fourth at Pyeongchang and second at last year's world championships. Madison Chock and Evan Bates were fourth at worlds.Four-time world champions Gabriella Papadakis and Guillaume Cizeron of France are heavy favorites. They finished second in Pyeongchang to Canadian duo Tessa Virtue and Scott Moir, who have since retired.

For Team USA, Allyson Felix will attempt to pass Merlene Ottey of Jamaica as the female Olympian with the most track and field medals in the mixed 4x400 relay and the women's 100-meter dash will be decided after a spirited day of heats.Kevin Durant and the U.S. men’s basketball team face Czech Republic in its final game of group play.SwimmingCaeleb Dressel added a world record to his growing medal haul.He won't be joining a very exclusive club, however.Dressel's bid to win six gold medals at the Tokyo Olympics was over before he even dove into the pool for the new 4x100-meter mixed medley relay Saturday.The Americans were too far behind when their top swimmer took over. The best Dressel could do was rally the U.S. to a fifth-place finish in the race that features two men and two women on each team.Track & FieldNigerian sprinter Blessing Okagbare was provisionally suspended for doping Saturday, hours before the former world championships silver medalist was due to run in the semifinals of the women's 100 meters at the Olympics.Okagbare tested positive for human growth hormone in an out-of-competition test on July 19, four days before the Olympics opened, the Athletics Integrity Unit said, prompting a mandatory provisional suspension.The results of that test were only received by track and field's anti-doping body late Friday and after Okagbare had already run in the 100 heats on the opening day of track competition at the Olympic Stadium in Tokyo, the AIU said.She won her heat in 11.05 seconds and was due to run in the semifinals on Saturday. The highly-anticipated women's 100 final is the last event on the day's track schedule. Here are some other things to watch (all times Eastern): Men's BasketballThe U.S. men’s basketball team can secure second place in Group A and clinch a berth in the Olympic quarterfinals on Saturday when it faces the Czech Republic.A win would also give the U.S. a chance at securing a top-four seed for the quarterfinals, which will be played in Saitama on Tuesday. Having a top-four seed is critical because it would mean that the Americans would not face any group winners in the knockout stage before the semifinals. Beach VolleyballThe knockout round begins in beach volleyball and the top American team of April Ross and Alix Klineman made it through the preliminaries unscathed, winning all three of their matches.That puts the Americans on the opposite side of the bracket from the overall No. 1 overall, Canada. They would not meet until the gold medal match. For the late crowdThe elimination round of men's beach volleyball is set for tonight, along with the men's 1,500-meter free and the BMX Freestyle Finals.The finals in men's and women's singles tennis are also tonight.