“For the first time in a while, my nerves really got the better of me, and it kind of became a little bit paralyzing,” Keys said after the match. “I felt like I was just slow. I wasn’t seeing things the way that I wanted to, which I feel like resulted in a lot of bad decisions and lazy footwork.”

Madison Keys admitted nerves "paralyzed" her in New York as she suffered an unexpected US Open first-round defeat to unseeded Renata Zarazua.

Get to know the timings, venue and match details for the 1st Round Women's singles match between Madison Keys & Renata Zarazua

Another year, another exciting, dramatic and unpredictable U.S. Open underway, with its championship games quickly approaching. The 145th annual tournament is taking place at the USTA Billie Jean King National Tennis Center in Flushing,