using profanity while arguing with the umpire of his US Open final match against Juan Martin Del Potro.
I am still amazed by how little attention this incident has been getting, probably because JMDP's win is bigger than anything else that happened last week. But still, Roger Federer cussing on court and then getting a fine is quite disturbing; to me at least.
Of course Federer's incident definitely takes a backseat to Serena William's tantrum, which is clearly evident in the difference in fine amount (Williams was fined $10,000).
Federer is in Genoa, Italy, this weekend for the Davis Cup and has already helped Switzerland, along with Stanislas Wawrinka, to a 2-0 lead over the Italians in their World Group playoff tie.