Wikipedia - Tennys Sandgren
Tennys Loren Sandgren II ( TEN-iss SAND-grən; born July 22, 1991) is an American former professional tennis player. He has achieved a career-high ATP singles ranking of No. 41 on January 14, 2019. He played two years of college tennis at the University of Tennessee before launching his professional career.
He broke into the top 100 of the ATP rankings toward the end of 2017 after competing mainly on the ATP Challenger Tour.