The staff includes former Orioles bullpen coach Alan Dunn, who's now the Tigers' pitching coach.
"They did a great job with him at LSU, Alan Dunn," Showalter said. "He came with pretty good times to the plate from the stretch. He came with some things, and that's why he was so intriguing in the draft.
"He's going to face the best hitters in the world now. I'll have a good seat, and we'll see."
Players were happy to see Gausman in the clubhouse, greeting him with hugs and high-fives. Reliever Darren O'Day jokingly asked the last interview question at Gausman's locker while substituting a shoe for a microphone. The question: Do you think you're going to be late for your first stretch?
"It's a little different group," Showalter said. "Our guys don't do a lot of your typical rookie hazing. You wear black and orange and you're one of us, they try to make your path a little easier.
"They get their share of it, whether it's carrying the backpack out (to the bullpen) or having to grow a mustache. I got it. I don't know, can Gaus grow one? He may have another challenge, maybe a tattoo or an earring. God bless him."
Gausman will wear No. 37.
Showalter knew it would be a challenge for outfielder Nolan Reimold to be ready to come off the disabled list on Tuesday, and the odds dropped considerably after MRIs showed "a small upper" issue with his right hamstring, as Showalter put it. It's actually a small tear.
"We're hoping he can start taking batting practice while we're gone, but not until he's 100 percent with his leg," Showalter said. "He can do some things hitting that won't jeopardize it, but this is a little unique. The work he has to get done should be done here."
Adam Jones is expected to play center field in Toronto after serving as the designated hitter the past two games because of a sore groin.
"He's not happy with me again. He wants to play center field," Showalter said. "We're getting ready to go to turf for four days, and I just want to be careful. He said he felt good last night, with one exception. He's not happy, so that's a good thing."
Last night marked the seventh time in Orioles history that they won a game after getting all three of their runs on solo homers. It happened most recently on June 5, 1998 against Atlanta.
The Orioles have the best fielding percentage in baseball at .992. According to STATS, it's the best in Orioles history through 45 games - ahead of the 1989 and 2007 clubs (.989).
According to Elias, the Orioles and Yankees have never played three straight extra-inning games against each other. Will it happen tonight?
Here are the pitching matchups for the Blue Jays series:
Thursday: TBA (Gausman) vs. Brandon Morrow
Friday: Chris Tillman vs. TBA
Saturday: Freddy Garcia vs. R.A. Dickey
Sunday: Miguel Gonzalez vs. Ramon Ortiz