Olympic Men's Tennis 2016: Round-of-16 Results, Scores and Reaction

Rain, rain, go away. With plenty of precipitation Wednesday, the Thursday tennis schedule at the 2016 Rio Games was jam-packed, with the entire men's round of 16 to be played.

Below, we'll break down the men's singles tournament and the reaction from a busy day of tennis.
     

Completed Matches

Player	1	2	3
(12) Steve Johnson	6	6
Evgeny Donskoy	1	1

American Steve Johnson cruised to a third-round victory against the overmatched Evgeny Donskoy on Thursday, 6-1, 6-1. Johnson ripped five aces and won 75 percent of his first-serve points, compared to Donskoy winning just 39 percent of his own first-serve points. 

Johnson and Madison Keys are the only Americans remaining in the singles competitions for the men and women, putting the United States' hopes of medaling squarely on their shoulders. The favorite among the Americans to medal in the singles competition, Serena Williams, was eliminated in shocking fashion, along with her sister, Venus. 

Johnson's road to a medal about to get much more difficult, however, as he'll face Andy Murray in the quarterfinals.

Player	1	2	3
(10) Roberto Bautista Agut	6	7
Gilles Muller	4	6 (4)

Spain's Roberto Bautista Agut moved onto the quarterfinals, battling past Gilles Muller in a competitive match, 6-4, 7-6 (4). 

Bautista Agut used a strong first serve to guide his victory, winning an impressive 89 percent of his first-serve points. He was also efficient in the match, converting two of his three break points.

He'll face Juan Martin del Potro in the quarterfinals.

Player	1	2	3
(3) Rafael Nadal	7	6
(15) Gilles Simon	6 (5)	3

Rafael Nadal is off to the quarterfinals, beating Gilles Simon 7-6 (5), 6-3 and keeping his quest for his second gold medal in Olympics singles play alive (he took home the gold in 2008).

Nadal won 72 percent of his first-serve points and ripped 21 winners, though his 40 unforced errors were a bit concerning. He was solid at the net, however, winning 13 points up close, and ultimately he was too much for the tough Simon to handle.

Nadal has been nothing short of remarkable in the Rio Games, as Carl Bialik of FiveThirtyEight noted:

In a tournament that has already seen the top two seeds in singles play eliminated, Williams and Novak Djokovic, Nadal's quest for an epic trio of medals is now one of tennis' main storylines.

Winning a gold medal in doubles alongside Marc Lopez might be an even more remarkable feat than returning from injury to win the singles tournament, based off of this tidbit from Arash Madani of Sportsnet: 

They'll face Canada's Vasek Pospisil and Daniel Nestor on Thursday in the men's doubles semifinals, while Nadal will face Thomaz Bellucci in the quarterfinals match.

Player	1	2	3
Juan Martin del Potro	6 (4)	6	6
Taro Daniel	7	1	2

Del Potro dropped his first set in a tiebreaker to Taro Daniel, but he quickly recovered to cruise through the next two sets and advance to the quarterfinals. 

Del Potro used his power to ultimately overwhelm Daniel 6 (4)-7, 6-1, 6-2, ripping 15 aces and 42 winners while winning 82 percent of his first-service points. He created nine break points, winning five, though he did have 37 unforced errors (to 32 for Daniel).

He'll face Bautista Agut in the quarters.

Player	1	2	3
(6) Gael Monfils	6	6	6
(9) Marin Cilic	7	3	4

Gael Monfils battled back after losing the first set to Marin Cilic, earning himself a spot in the quarterfinals on Thursday.

Monfils used a solid serve—he won 73 percent of his first-serve points—and benefitted from a sloppy afternoon from Cilic, who will be disappointed with his 53 unforced errors.

Monfils will face Kei Nishikori in the quarterfinals.

Player	1	2	3
(4) Kei Nishikori	6	6
Andrej Martin	3	4

Nishikori advanced to the quarters on Thursday, easily dispatching of Andrej Martin in straight sets. His net game (seven net points) and 17 winners were the difference.

His path to a medal will get much more difficult in the quarterfinals, however, where the talented Monfils awaits

Player	1	2	3
(2) Andy Murray	6	2	6
Fabio Fognini	1	6	3

Murray moved on to the quarterfinals and a bout with Johnson, surviving a poor second set to beat Fabio Fognini in three sets.

Murray won 71 percent of his first-serve points and benefitted from 48 unforced errors off the racket of Fognini. Fognini showed more power, holding a 21-14 advantage in winners, but the always steady Murray was too strong.

“It wasn’t a great match, it wasn’t pretty, but I got through," Murray told Jim White of the Telegraph. "And that’s all that matters."

As has been the case throughout the tournament, the conditions played a factor.

“It was really difficult,” Murray said. “The sun was casting really harsh shadows, and the wind kept changing direction.”

But Murray handled them. And he handled Fognini, too.

Player	1	2	3
(8) David Goffin	6	4
Thomaz Bellucci	7	6

Bellucci earned the right to face the dangerous Nadal in the quarterfinals, beating David Goffin in straight sets.

Bellucci survived a first-set tiebreaker and relied on a steady serve to get past Goffin. The two were fairly even, but Bellucci ability to win 71 percent of his first-serve points was the difference.

All stats via NBCOlympics.com. You can follow Timothy Rapp on Twitter.