Japan's Tomoyuki Matsushita set a swimming short course world record to win the men's 400-meter individual medley on Sunday by clocking 3 minutes, 54.33 seconds at the national championships.The 21-year-old Paris Olympics silver medalist shed 0.48 from the previous record set in 2019 by his compatriot Daiya Seto, who failed to make the final in Saga in southwestern Japan."I swam thinking as if it was a 300-meter race," said Matsushita, who attacked aggressively through the first three strokes and showed his grit with the final freestyle. "I was aiming for it (the world record), so I'm reall…READ FULL ARTICLE