 Night one of the trials was up and down for Biles. She was especially wobbly on the balance beam, a routine that began with a slip so bad she nearly fell. But Biles followed that up with a strong floor routine and a vault so exceptional that it scored well over an entire point over the next highest score. Everybody's nerves were shaken at first when the night began with injuries to two competitors on the vault. First was Shailese Jones, widely considered a strong contender for the Olympic team. Her knee buckled during a warm-up.