 Complete the following phrase:  In 2021, Hayden won the 50 m freestyle at the Canadian Olympic Trials with a time of 21.82, well ahead of the FINA A standard of 22.01. This was his fourth time representing Canada at the Olympics. He opted not to contest the 100 m in Tokyo, as he and his coaches feared it might trigger back spasms. Haydens return was widely credited for providing leadership to the mens program, with the most notable result being the surprise fourth-place finish in the 