One of the most consistent players in the men's tour nowadays and maybe even historically, Novak Djokovic just entered his 27th semifinal appearance in a grand slam.
It is also his ninth consecutive appearance in the semifinals or deeper in the US Open. He has won this title once (2011) and was runner up four times (2007, 2010, 2012, 2013).
This was his path to the semis -
1R: Joao Souza (BRA) (#91)
2R: Andreas Haider-Maurer (#52)
3R: Andreas Seppi (#25)
4R: Roberto Bautista Agut (#23)
QF: Feliciano Lopez (#19)
SF: Marin Cilic (#9)