Rafa is expected to travel to Toronto Tomorrow (Thursday) and participate in the draw ceremony on Friday, according to TennisCanada on Twitter.
The draw is scheduled for 4 PM EDT, 9 PM BST, 10 PM CEST.

Nadal to Open Rogers Cup at CN Tower

Rafael Nadal, ATP World Tour No.1 and two-time Rogers Cup champion, along with Karl Hale, tournament director, will kick off the official draw ceremony for the Rogers Cup this Friday at the CN Tower in Toronto, Canada.

Returning to action after capturing his second Wimbledon title last month in England, Nadal will lead a star-studded field which will also include: Novak Djokovic, Roger Federer, and Andy Murray.
TennisConnected.com will be present throughout the duration of the Rogers Cup event. Stay tuned for our week long coverage.

source 

Vamos Rafa!