Cracked Racquets Editor-in-Chief Alex Gruskin previews Friday's Quarterfinal action at the Bloomfield Hills Challenger

Sasikumar/Sandgren - 3:35 Kudla/Kukushkin - 9:27 Jasika/Schoolkate - 14:22 Johnson/Uchiyama - 17:30 Learn more about your ad choices. Visit megaphone.fm/adchoices