![AMERSFOORT, NETHERLANDS - JULY 17: Goncalo Oliveira (POR) during the Van Mossel KIA Dutch Open at Tennisvereniging ATLA on July 17, 2021 in Amersfoort, Netherlands (Photo by Hans van der Valk/Orange Pictures AMERSFOORT, NETHERLANDS - JULY 17: Goncalo Oliveira (POR) during the Van Mossel KIA Dutch Open at Tennisvereniging ATLA on July 17, 2021 in Amersfoort, Netherlands (Photo by Hans van der Valk/Orange Pictures](https://c8.alamy.com/comp/2G8AG8X/amersfoort-netherlands-july-17-goncalo-oliveira-por-during-the-van-mossel-kia-dutch-open-at-tennisvereniging-atla-on-july-17-2021-in-amersfoort-netherlands-photo-by-hans-van-der-valkorange-pictures-2G8AG8X.jpg)
AMERSFOORT, NETHERLANDS - JULY 17: Goncalo Oliveira (POR) during the Van Mossel KIA Dutch Open at Tennisvereniging ATLA on July 17, 2021 in Amersfoort, Netherlands (Photo by Hans van der Valk/Orange Pictures
Dutch Open koerst af op nieuw bezoekersrecord: 'Eén van de topevenementen van Amersfoort' | Regiosport Amersfoort | AD.nl
![AMERSFOORT, NETHERLANDS - JULY 17: Antoine Hoang (FRA) during the Van Mossel KIA Dutch Open at Tennisvereniging ATLA on July 17, 2021 in Amersfoort, Netherlands (Photo by Hans van der Valk/Orange Pictures AMERSFOORT, NETHERLANDS - JULY 17: Antoine Hoang (FRA) during the Van Mossel KIA Dutch Open at Tennisvereniging ATLA on July 17, 2021 in Amersfoort, Netherlands (Photo by Hans van der Valk/Orange Pictures](https://c8.alamy.com/comp/2G8AGDX/amersfoort-netherlands-july-17-antoine-hoang-fra-during-the-van-mossel-kia-dutch-open-at-tennisvereniging-atla-on-july-17-2021-in-amersfoort-netherlands-photo-by-hans-van-der-valkorange-pictures-2G8AGDX.jpg)