Trott claimed gold in a world-record time alongside Joanna Rowsell-Shand, Elinor Barker and Katie Archibald, having won the event at London 2012 also.
The 24-year-old took omnium victory four years ago as well, and will look to collect her fourth gold when this event starts tomorrow.
Praise for Trott soon flooded in on social media.
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