US Open 2019 Men's Singles Round of 16 Picks, Bottom Half

Of the 16 remaining players:
7 Players Ranked/Seeded in the Top 16
11 Players Ranked/Seeded in the Top 32
1 Player with a Qualifier Bid

When it comes to the four majors, it is about "The Big Three": Federer,  Nadal and Djokovic, and which one has the tougher road to the Finals. Which player can surprise them before the semifinals.

[Rublev A.] vs. Berrettini M. (24)  -- A true toss-up. Both players compete all the way through and pull off surprising victories. Losses come at the hands of more experienced and established players.

[Monfils G.] (13) vs. Andujar-Alba P. -- Monfils is having one of his better years and has won all three meetings against Andujar-Alba.

[Zverev A.] (6) vs. Schwartzman D. (20)  -- Both players have been inconsistent by their standards. They split their two meetings. Giving the edge to Zverev mainly because the five-set format leads to fewer upsets.

Cilic M. (22) vs. [Nadal R.] (2) -- Cilic can get hot. Nadal leads series 6 to 3, with Cilic having won 2 of the last 3 matches. Still not ready to call an upset but expect a great match.