Feliciano Lopez (#19) finally makes a big breakthrough in the 2015 US Open by making it into the quarterfinals here for the first time. This is also his fourth trip to a quarterfinal in all of the grand slams.
This was his route towards his first ever US Open quarterfinal -
1R: Nikoloz Basilashvili (GEO) (#101)
2R: Mardy Fish (USA) (#581)
3R: Milos Raonic (CAN) (#10)
4R: Fabio Fognini (ITA) (#32)
QF: Novak Djokovic (#1)