South Africa's Lloyd Harris got off to a winning start at the ATP 250 level event in Cologne, Germany on Monday.
Harris, the world No 92, upset Britain's world No 47 Kyle Edmund 7-5, 7-6 (7/1) at the indoor hardcourt event
It was Harris' first win over Edmund, having lost 6-1, 6-4 to the Brit at the ATP tournament in Washington DC last year. Edmund also beat Harris 6-2, 4-6, 6-1 in the qualifying event before last year's Indian Wells Masters.
The 23-year-old Harris will next face American Steve Johnson, who is ranked 68th in the world, Wednesday.
Meanwhile there was also some good news for South African doubles ace Raven Klaasen, who alongside his Austrian partner Oliver Marach, defeated German brothers Alexander and Mischa Zverev 2-6, 6-4, 10-6 in the first round on Tuesday.
According to the ATP Tour's official website, Klaasen and Marach saved 11 of the 14 break points they faced, including all eight in the second set.
Before their victory on Tuesday, the South African-Austrian duo had a 1-5 win-loss record after the ATP Tour's restart.
They will next duel Spaniards Alejandro Davidovich Fokina and Fernando Verdasco or Germans Daniel Masur and Rudolf Molleker.
- Compiled by Herman Mostert