Duet Kawa i Zieliński wygrywają z Niemcami w United Cup

Poland's Jan Zielinski (L) and Katarzyna Kawa hit a return to Germany's Alexander Zverev and Laura Siegemund during their mixed doubles match at the U...

Poland's Katarzyna Kawa (L) and Jan Zielinski serve to Germany's Alexander Zverev and Laura Siegemund during their mixed doubles match at the United C...

Poland's Jan Zielinski (R) and Katarzyna Kawa hit a return to Germany's Alexander Zverev and Laura Siegemund during their mixed doubles match at the U...

Germany's Laura Siegemund (top L) and Alexander Zverev serve to Poland's Jan Zielinski and Katarzyna Kawa during their mixed doubles match at the Unit...

Poland's Jan Zielinski (R) and Katarzyna Kawa prepare to serve against Germany's Alexander Zverev and Laura Siegemund during their doubles match at th...

Poland's Jan Zielinski (R) and Katarzyna Kawa play a point against Germany's Alexander Zverev and Laura Siegemund during their doubles match at the Un...

Germany's Alexander Zverev (L) and Laura Siegemund celebrate a point against Poland's Jan Zielinski and Katarzyna Kawa during their doubles match at t...

Poland's Jan Zielinski (L) and Katarzyna Kawa celebrate after victory against Germany's Alexander Zverev and Laura Siegemund in their doubles match at...

Poland's Katarzyna Kawa (L) and Jan Zielinski (2L) are congratulated by Germany's Alexander Zverev (R) and Laura Siegemund after their victory in the...

Poland's Katarzyna Kawa (L) and Jan Zielinski (2L) are congratulated by Germany's Alexander Zverev (R) and Laura Siegemund after their victory in the...