Michael Phelps, the most decorated Olympian of all time, has qualified for his fifth Olympic Games after winning the US 200m butterfly trials.
The 18-time gold medalist retired after London 2012 before returning to the pool in 2014.
He was arrested for drink-driving later that year and was banned from competitive swimming for six months.
Phelps, 31, said after qualifying: “That was probably harder than any swim I have had in my life.”
He is the first American male swimmer to make five Olympic teams.