Semifinal bound! Former Longhorn 🤘 Colin Markes 🇺🇸 battled for almost three hours to earn his ticket to the next round. 🎾 Markes will face Eduardo Nava 🇺🇸 tomorrow at the Texas Tennis Center. #DropShotATX #DropShotSeries #pro #tennis #ITFWorldTennisTour #usta #rudys #heb #rudysbbq #laserfibre #newhopeanimalrescue #rocketbanners