Bulgaria’s world No.17 Grigor Dimitrov has upset defending champion Milos Raonic of Canada to win through to the Brisbane International men’s final on Saturday.

Seventh seed Dimitrov romped to a 7-6 (9-7) 6-2 win over the world No.3 in just under 90 minutes at Pat Rafter Arena.

He booked a Sunday final showdown with Kei Nishikori after Japan’s world No.5 beat US Open champion Stan Wawrinka 7-6 (7-3) 6-3 in just over 90 minutes in their semi-final.

Third seed Nishikori has a 3-0 record over Dimitrov.