<p>Roger Federer and Juan Martin del Potro, who is set to return next month from a knee injury, announced on Tuesday they will play an exhibition match in Buenos Aires on November 20.</p>.<p>"I just wanted to tell you I'm so excited to come back to Argentina to play my good friend Juan Martin del Potro at Parque Roca," Federer said in a video on Del Potro's Twitter account.</p>.<p>The Parque Roca stadium has a capacity of around 15,500 and is primarily used for Davis Cup ties.</p>.<p>Del Potro, the 2009 US Open champion from Argentina, has not played since fracturing his right knee in the Wimbledon tune-up at Queen's in June.</p>.<p>The injury-plagued 30-year-old was forced to miss this year's US Open after finishing runner-up to Novak Djokovic in 2018 final.</p>.<p>He is expected to make his comeback at the ATP tournament in Stockholm, which runs from October 14 to 20, and is also scheduled to compete in Vienna the following week.</p>.<p>The match in Buenos Aires will take place at the same time as the revamped 18-team Davis Cup finals, to be held in Madrid from November 18 to 24</p>
<p>Roger Federer and Juan Martin del Potro, who is set to return next month from a knee injury, announced on Tuesday they will play an exhibition match in Buenos Aires on November 20.</p>.<p>"I just wanted to tell you I'm so excited to come back to Argentina to play my good friend Juan Martin del Potro at Parque Roca," Federer said in a video on Del Potro's Twitter account.</p>.<p>The Parque Roca stadium has a capacity of around 15,500 and is primarily used for Davis Cup ties.</p>.<p>Del Potro, the 2009 US Open champion from Argentina, has not played since fracturing his right knee in the Wimbledon tune-up at Queen's in June.</p>.<p>The injury-plagued 30-year-old was forced to miss this year's US Open after finishing runner-up to Novak Djokovic in 2018 final.</p>.<p>He is expected to make his comeback at the ATP tournament in Stockholm, which runs from October 14 to 20, and is also scheduled to compete in Vienna the following week.</p>.<p>The match in Buenos Aires will take place at the same time as the revamped 18-team Davis Cup finals, to be held in Madrid from November 18 to 24</p>