You may have heard that the diving and water polo pools have both turned green this week, but the water isn't the only thing that has been turning green lately.
32-year-old Ryan Lochte is taking part in his fourth Olympic Games, but he won't be framing many images of his time in Rio in his living room after the chlorine in the water turned his former silver tinted hair into a minty green colour, making the swimmer look an absolute fool.
Lochte had originally transformed his previously dark hair into a shade of ice blue before jumping on the plane to South America in honour of his fourth games.
However, after spending so much time in the water, which is filled with chlorine, Lochte's hair has hilariously, but tragically, turned into a light shade of mint green.
As per, Twitter was providing plenty of entertainment as the colour of his hair progressively changed.
One of the best tweets from this guy read: "Ryan Lochte looks like he's in a Green Day cover band that only does songs off of Nimrod."
Meanwhile, journalist Ashlee McGeehan and another Twitter user had a premonition over the turn of events regarding Lochte's hair colour.
On Tuesday night, Lochte, Michael Phelps, Conor Dwyer, and Townley Haas, won gold at the Olympic Aquatic Centre in the men's 4x200m freestyle relay, ensuring that the USA claimed gold for that race for the fourth games running.
The 32-year-old can add that gold medal to his display cabinet when he gets home, which currently accommodates 11 Olympic medals. That tally, with his gold from Tuesday night, could rise to 13 by Friday night, where Lochte will go head-to-head against his fellow countryman Michael Phelps in the men's 200m individual medley final.
What's more tragic? The green Olympic swimming pool or Ryan Lochte's hair? Have YOUR say in the comment section below!