Chat with Ryan Harrison
After qualifying for his first ATP Main Draw event, 15-year-old Harrison defeated his first top 100 opponent at US Men's Clay Court Championshipin in Houston and moves on to play either James Blake or fellow teen sensation Kei Nishikori in the second round on Thursday.
Submit your questions now and join Harrison in The Show on Wednesday at 2:30 p.m. ET.
This chat is exclusive to ESPN Insiders