Ruben (ATP-110) tries to force a place on the main draw of the ATP-tournament of Stuttgart (Germany, € 729 340). In the first qualifying round he takes on an American.
Ruben starts the qualifying tournament of the grass tournament in Stuttgart as the third seed. In the first round, he faces American Christian Harrison (ATP-207). They meet for the first time.
When Ruben survives two qualifying rounds, he reaches the main draw.