New York - South Africa's Kevin Anderson suffered an early exit at the New York Open when he lost to Jason Jung, a qualifier from the Chinese Taipei.
Jung, the world No 131, beat 120th-ranked Anderson 7-6 (8/6), 6-4.
Anderson won the New York Open in 2018 but is on the comeback trail after a knee injury sidelined him for the second part of 2019.
He reached the second round of the Australian Open and also represented South Africa in the inaugural ATP Cup at the start of the year.
"I guess I like these courts. It's always nice to get a big win and gives (me) a little confidence boost, so hopefully I can build on that. I'm just really happy," Jung told the ATP Tour's official website. "Obviously Kevin is coming back, but he's been in two Grand Slam finals. Great confidence for me and hopefully this translates into 2020..."
- Compiled by Herman Mostert
Results from ATP Tour New York Open on Tuesday (x denotes seed):
Jordan Thompson (AUS) bt Ivo Karlovic (CRO) 6-3, 7-6 (7/2)
Kwon Soon-woo (KOR) bt Go Soeda (JPN) 6-2, 6-7 (2/7), 6-3
Kyle Edmund (GBR x8) bt Yasutaka Uchiyama (JPN) 7-5, 6-4
Paolo Lorenzi (ITA) bt Danilo Petrovic (SRB) 4-6, 6-4, 6-0
Dominik Koepfer (GER) bt Brayden Schnur (CAN) 6-4, 6-3
Yoshihito Nishioka (JPN) bt Henri Laaksonen (SUI) 6-3, 0-6, 6-2
Cameron Norrie (GBR x7) bt Brian Shi (USA) 7-5, 6-3
Jason Jung (TPE) bt Kevin Anderson (RSA) 7-6 (8/6), 6-4