Rory McIlroy was slated to compete against Jason Day in “Battle for a Cause,” an exhibition match at Pradera Verde Golf and Country Club in Pampanga in the Philippines on November 29. But with Day on the DL due to a back injury, Dustin Johnson is stepping up to take the Australian’s spot in the 18-hole charity match.

“It should be a lot of fun,” Johnson told reporters at the WGC-HSBC Champions Wednesday. “I like playing against Rory, and I’ve never been to the Philippines.”

“It will be a cool match,” McIlroy said. “I’m happy that Dustin wanted to come and take part. Obviously, it was going to be Jason, and it would have been special for him with his ties to the Philippines. It’s a place I’ve never been. I’ve met a lot of Filipino people along the way that are always nice and courteous and welcoming, and I’m looking forward to that hospitality in Manila.”

The “Battle” will also include a gala dinner and auction the prior evening, November 28. Up for bid at the typhoon relief-focused event: the opportunity to caddie for McIlroy or Johnson for nine holes of the match.

McIlroy was supposed to play Rickie Fowler in a head-to-head match in Detroit last summer, but plans for that duel never got off the ground, and the Day-McIlroy dual was pegged for the Philippines due to Jason Day’s maternal connection to the region.

Johnson was scheduled to tee it up at Tiger Woods Hero World Challenge in the Bahamas during the first week of December, but has relinquished his spot.