France's Leon Marchand beat Michael Phelps' world record last summer and is a -500 favorite to win the 400 meters Individual Medley. The 22-year-old will have the pressure of competing on his home turf.
With a roster featuring 11 NBA players, Group A favorite Canada is a solid favorite over Greece. Two-time NBA MVP Giannis Antetokounmpo leads Greece and will also serve as its Olympic flagbearer for the opening ceremonies.
In the Olympic men's basketball opener, Spain and Australia square off to decide who might be able to outlast Canada or Greece to win what is expected to the most competitive of the three groups.
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