Monte Carlo - Grigor Dimitrov stunned Monte Carlo Masters holder Stan Wawrinka as he beat the Swiss seventh seed 6-1, 6-2 in the third round on Thursday.
The exit of 2014 Australian Open champion Wawrinka came a year after he won his first and only Masters 1000 title here, beating compatriot Roger Federer in the final.
The Swiss was well off his game, finishing in 54 minutes with 41 unforced errors and just four winners against ninth seed Dimitrov.
The ninth-ranked Wawrinka is now in danger of losing his top 10 ranking pace.
Results on the fifth day of the Monte Carlo Masters on Thursday (x denotes seeded player):Third round
David Ferrer (ESP) bt Gilles Simon (FRA) 6-2, 6-7 (3/7), 6-1
Novak Djokovic (SRB x1) bt Andreas Haider-Maurer (AUT) 6-4, 6-0
Grigor Dimitrov (BUL x9) bt Stanislas Wawrinka (SUI x7) 6-1, 6-2
Milos Raonic (CAN x4) bt Tommy Robredo (ESP x16) 6-3, 3-6, 6-3
Gael Monfils (FRA x14) bt Roger Federer (SUI x2) 6-4, 7-6 (7/5)
Marin Cilic (CRO x8) bt Jo-Wilfried Tsonga (FRA x11) 6-3, 7-6 (7/5)
Rafael Nadal (ESP x3) bt John Isner (USA x15) 7-6 (8/6), 4-6, 6-3
Tomas Berdych (CZE x6) bt Roberto Bautista (ESP x12) 7-6 (9/7), 6-4