US swimming legend Michael Phelps bows out of his last Olympics by winning his 23rd gold medal in the Men's 4x100m relay (but it's all a bit tiring for baby Boomer)

Sixteen years after he made his first Olympic swim, Michael Phelps has taken his last lap - and it was a record-breaking golden one. 


The greatest swimmer of all time helped Team USA make their way to the top of the podium once again with a win in the Men's 4x100m relay on Saturday night. And Phelps wasn't the only one couldn't hold back the tears after his final race. The Olympian's fiancée Nicole Johnson (right) had to wipe her eyes as she watched him take gold one last time, and his mother Debbie couldn't help but cry. The only dry eye in the place belong to his son Boomer (bottom right), who was clearly tired after a week of watching his dad win.