Kenin, Anisimova and Swiatek scored dominant wins on Saturday. (Getty)

Week 1 at Roland Garros officially wrapped on Saturday with the fourth round set in both the men's and women's draws. TENNIS.com Podcast co-hosts Nina Pantic and Irina Falconi break down and react to some of the most exciting storylines. 

They kick off with Sofia Kenin's stunning upset over Serena Williams, and the rise of youth swagger on the WTA tour with 20-year-old Kenin and teenagers Amanda Anisimova and Iga Swiatek all getting wins on Saturday. Swag really is key when it comes to pulling off upsets on the biggest stages of the sport. Falconi actually played against Swiatek just last year and has insight on how good the Pole really is. Marketa Vondrousova, who turns 20 later this month, is yet another youth in the round of 16. 

Pantic and Falconi also take a stab at the TENNIS.com poll: Whose shot at history is most notable? Adjusting to remove Serena from her bid for Grand Slam No. 24, the options remain: Rafael Nadal's 12th Roland Garros crown, Novak Djokovic's fourth Slam in a row (again) or Roger Federer's 21st major. 

That's it for this episode of The TENNIS.com Podcast: Inside the Tour. Subscribe on iTunes, Android and/or Spotify so you don't miss a single second.