Olympic Men's Tennis 2016: Monday Round-of-32 Results, Scores and Reaction

Men's tennis continued to pare down its field Monday at the 2016 Summer Olympics, with round-of-32 action getting underway in Rio. 

The field was blown wide-open in Round 1 when reigning world No. 1 Novak Djokovic lost to Juan Martin del Potro. Olympic gold is the only item missing from Djokovic's trophy case after winning the 2016 French Open. A 2008 bronze medalist, this is the second straight Games where the Argentinian Del Potro has unseated the Serb.

His loss could open up the field for an Andy Murray repeat or offer another elite player a chance at triumph. Kei Nishikori, Jo-Wilfried Tsonga and Marin Cilic were among the top players in action Monday, while Murray awaits a Tuesday second-round match.

Here is a look at how everything played out from the men's side in Rio.

Monday Results

Matchup	Score
Andrej Martin (Slovakia) def. [13] Philipp Kohlschreiber (Germany)	Walkover
Taro Daniel (Japan) def. Kyle Edmund (Great Britain)	6-4, 7-5
[10] Roberto Bautista Agut (Spain) def. Andrey Kuznetsov (Russia)	7-6 (2), 6-2
Juan Martin Del Potro (Argentina) def. Joao Sousa (Portugal)	6-3, 1-6, 6-3
Gilles Muller (Luxembourg) def. [5] Jo-Wilfried Tsonga (France)	6-4, 6-3
[6] Gael Monfils (France) def. Rogerio Dutra Silva (Brazil)	6-2, 6-4
[9] Marin Cilic (Croatia) def. Radu Albot (Republic of Moldova)	6-3, 6-4
Kei Nishikori (Japan) def. John Millman (Australia)	7-6 (4), 6-4

Recap

The first result of Monday was already decided before players even hit the court. Thirteenth-seeded Philipp Kohlschreiber of Germany was forced to withdraw from the Rio Games due to a foot fracture, per Reuters. Slovakia's Andrej Martin advanced to the round of 16 in a walkover.

Japan's Taro Daniel, who upset American Jack Sock in the round of 64, earned his second straight-sets win in as many matches against Great Britain's Kyle Edmund. Daniel took advantage of six Edmund double-faults, including four in the second set, for a 6-4, 7-5 triumph.

Playing a largely steady match, Daniel won 69 percent of his service points overall and nearly three-quarters of his first serves. The 23-year-old will have a decent chance of advancing to the quarterfinals, when he faces his second consecutive unseeded opponent in Del Potro.

The Argentine fought through a difficult three-set match with Portugal's Joao Sousa on Monday, winning 6-3, 1-6, 6-3. Del Potro smashed 13 aces and won 66 percent of his service points overall, helping him overcome 25 unforced errors. Fourteen of those came in an ugly second set, with Sousa earning a pair of breaks and only making one error. 

Despite a second straight day of struggles in his first set, Spaniard Roberto Bautista Agut also advanced in his match against Italian Paolo Lorenzi. Bautista Agut, who lost his first set to Andrey Kuznetsov in the first round before winning when the Russian retired before the third, needed a tiebreak against Lorenzi in the 7-6 (2), 6-2 win.

The No. 10 seed took advantage of three Lorenzi double-faults, all coming in the second set. The Italian seemed to fall apart a bit after failing to take advantage on three of four break chances in the first.

Gilles Muller of Luxembourg scored a big upset, taking down fifth-seeded Frenchman Jo-Wilfried Tsonga in straight sets. Muller hit 14 aces and lost on only four first-serve points, helping him overcome six double-faults and 27 unforced errors. Tsonga failed to convert on all seven of his break-point chances, which ultimately made the difference in the match.

Gael Monfils avoided the upset fate of his fellow Frenchman and beat Brazil’s Rogerio Dutra Silva in straight sets, 6-2, 6-4.

Silva was on home soil, but Monfils demonstrated why he is so highly seeded with relative ease. He controlled portions of the match with his serve and notched eight aces and even won 72 percent of his second-serve points, per NBCOlympics.com. Silva never had an answer and committed 34 unforced errors in the match.

Elsewhere, Cilic advanced with a straight-set victory over Radu Albot, 6-3, 6-4. Albot, who is from the Republic of Moldova, tested Cilic some in the second set, but the Croatian was far too dominant with his first serve. Cilic won 84 percent of the points on his first serve, per NBCOlympics.com, which ended any realistic upset chances Albot had on Monday.

Japan’s Kei Nishikori also won in straight sets on Monday when he defeated Australia’s John Millman, 7-6 (4), 6-4.

It was a difficult first set with few break opportunities, but Nishikori was a perfect three-of-three on break-point conversions throughout the match, per NBCOlympics.com. What’s more, he overcame 31 unforced errors thanks largely to efficiency with the first serve. Nishikori won 79 percent of his first-service points and did just enough when those break opportunities arose to win the match in two sets.