Day 4 in Rio was another awesome day for the US and Day 5 promises more gold. If you missed it Tuesday, the lights were shining on Michael Phelps, who won gold in the 200m butterfly and shortly after he swam the final leg in the 4X200 free, which resulted in his 21st career gold medal.
Here are three things you need to know today.
1. The Phelps finger wag
After beating his arch rival, South Africa's Chad le Clos, in the 200m butterfly, Phelps was caught on camera gesturing "bring it" followed by a Dikembe Mutombo-esque finger wag.
Phelps and le Clos have had beef since le Clos ousted Phelps for the gold in the 2012 fly. This time around le Clos finished fourth.
2. US men's and women's basketball
At 1:30 p.m. today Maya Moore, Lindsay Whalen, Sylvia Fowles and Seimone Augustus lead the US against Serbia in what's undoubtedly going to be another dominating performance. The US is 2-0 and Serbia has yet to win. That, along with the US's scoring differential of +105 points is not good for Serbia.
At 5 p.m. the US men have one of their toughest tests against Australia, which has a few decent NBA players: Andrew Bogut, Matthew Dellavedova and Patty Mills.
3. Swimming: Ledecky, Adrian, Franklin
They're swimming for medals tonight in the men's 100m freestyle and the women's 4X200m freestyle. That means Nathan Adrian of the US is going for back-to-back golds in the 100m free and the women's team, featuring Katie Ledecky and Missy Franklin, is trying to make it seven straight golds in the event.
The swimming will be televised on NBC beginning at 8 p.m.