NEW YORK — Wednesday is mailbag day, and word on the street is there's a pretty significant tennis thing happening right now. So, without further ado...
MAILBAG
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Jon, what was the bigger upset, Naomi Osaka losing or Djokovic losing?
—Carlito, Brooklyn
• I'll start with the write-in and say last night's result of Dimitrov d. Federer. Six weeks ago, Dimitrov was in Atlanta losing to player ranked outside the top 400.