Time to revive the Upset Picks of the Day, like them or not!

Down to the final 16 in Toronto. Which players do you predict as best candidates for an upset?
Stadium[3] Stan Wawrinka (SUI) v Kevin Anderson (RSA)
[1] Novak Djokovic (SRB) v [13] Jo-Wilfried Tsonga (FRA)
[12] Richard Gasquet (FRA) v [8] Andy Murray (GBR)
[6] Milos Raonic (CAN) v Julien Benneteau (FRA)
[15] Marin Cilic (CRO) v [2] Roger Federer (SUI)
Grandstand[17] Tommy Robredo (ESP) v [7] Grigor Dimitrov (BUL)
[5] David Ferrer (ESP) v Ivan Dodig (CRO)
Feliciano Lopez (ESP) v
[4] Tomas Berdych (CZE)Respectfully,
masterclass