Wikipedia - Artem Sitak

Artem Yurievich Sitak ( ART-əm SIT-ak; Russian: Артём Юрьевич Ситак, romanized: Artyom Sitak; born 8 February 1986) is a Russian-born New Zealand former professional tennis player. On 11 August 2008, he reached his highest ATP singles ranking of World No. 299, whilst his highest doubles ranking of World No. 32 was reached on 10 September 2018, after the US Open. He is the younger brother of Dmitri Sitak, who was also a professional tennis player.