The 21-year-old Pompey became the ninth Canadian-born player to homer for the Blue Jays. Brett Lawrie, Matt Stairs, Corey Koskie, Dave McKay, Rob Ducey, Paul Hodgson, Adam Loewen and Simon Pond are the others on that list.
"As soon as I hit it, I pretty much knew I got it," Pompey said. "I don't hit too many home runs but when I hit that one, it just took off and I was just watching. I was kind of in shock for a moment -- who was pitching, ball I hit -- I played with that guy on video games, and to think I just hit a home run off him was pretty crazy."
Pompey didn't receive a lot of attention heading into the year but has since established himself as one of the club's top prospects. He was promoted to the Majors on Sept. 2, and his season will continue later this year in the Arizona Fall League.
When the Blue Jays initially promoted Pompey, he wasn't expected to receive a lot of playing time, but that has since changed. The native of Mississauga has started five consecutive games for the Blue Jays. He picked up his first hit on Friday and scored his first run on Monday.
"That's what the night should be about," Blue Jays starter R.A. Dickey said after his club's win. "Pompey hit his first home run off probably the AL Cy Young Award winner, two-time award winner. He's probably going to win the Cy Young, he should, he's incredible.
"For a guy like that to do it in front of family, that's a cool thing. That's what baseball offers, cool stories like that, and hopefully the night will be about that."
Gregor Chisholm is a reporter for MLB.com. Read his blog, North of the Border, and follow him on Twitter @gregorMLB. This story was not subject to the approval of Major League Baseball or its clubs.