<p>Novak Djokovic overcame an early break to beat Diego Schwartzman 6-3 6-2 Monday at the season-ending ATP Finals in an empty O2 Arena.</p>.<p>The top-ranked Djokovic has won the tournament five times — one short of Roger Federer's record.</p>.<p>Schwartzman broke Djokovic for a 2-1 lead in the first set, but the 28-year-old Argentine immediately gave it back as he struggled with his first serve.</p>.<p>At 3-3, Djokovic won five straight games to close out the first set and build 2-0 lead in second.</p>.<p>Djokovic hasn't lost an opening ATP Finals match since 2007 against David Ferrer. The 33-year-old Serb has never lost to Schwartzman in six matches.</p>.<p>The Argentine player — without a title this year and making his debut at the ATP Finals — reached the French Open semifinals and the Cologne Championship final. He also made it to the Italian Open final, losing to Djokovic.</p>.<p>Later Monday, Daniil Medvedev was to play 2018 champion Alexander Zverev in a rematch of the Paris Masters final. Medvedev won that match 5-7, 6-4, 6-1 for his first tour title in 2020.</p>.<p>The ATP Finals move to Turin, Italy, next year, after 12 years in London. </p>
<p>Novak Djokovic overcame an early break to beat Diego Schwartzman 6-3 6-2 Monday at the season-ending ATP Finals in an empty O2 Arena.</p>.<p>The top-ranked Djokovic has won the tournament five times — one short of Roger Federer's record.</p>.<p>Schwartzman broke Djokovic for a 2-1 lead in the first set, but the 28-year-old Argentine immediately gave it back as he struggled with his first serve.</p>.<p>At 3-3, Djokovic won five straight games to close out the first set and build 2-0 lead in second.</p>.<p>Djokovic hasn't lost an opening ATP Finals match since 2007 against David Ferrer. The 33-year-old Serb has never lost to Schwartzman in six matches.</p>.<p>The Argentine player — without a title this year and making his debut at the ATP Finals — reached the French Open semifinals and the Cologne Championship final. He also made it to the Italian Open final, losing to Djokovic.</p>.<p>Later Monday, Daniil Medvedev was to play 2018 champion Alexander Zverev in a rematch of the Paris Masters final. Medvedev won that match 5-7, 6-4, 6-1 for his first tour title in 2020.</p>.<p>The ATP Finals move to Turin, Italy, next year, after 12 years in London. </p>