SideTrack: Katy Perry, Jake Gyllenhaal, Tom Brady and more...

May 16, 2017

START YOUR ENGINES: Jeff Bauman, a survivor of the Boston Marathon bombing, will be an honorary starter at this year’s Indianapolis 500. The best part: He will be sharing his starter responsibilities with Academy Award-nominated actor Jake Gyllenhaal, who’s playing Bauman in the upcoming film “Stronger.” The movie is based on Bauman’s book with the same title, which chronicles his personal journey after losing both of his legs at the 2013 finish line.

The “Stronger” film is being directed by David Gordon Green and will be released Sept. 22. While you might have to sit tight until the flick debuts, you can watch Gyllenhaal and Bauman wave green flags at the 101st Indy 500 on May 28.

WHAT A GUY: Maybe it’s a diet that includes crispy turnip cakes, or maybe it’s the five Super Bowl rings: In any case, Tom Brady has a pretty big heart. The New England Patriots QB told ESPN.com that he doesn’t want the guy who allegedly swiped his Super Bowl jerseys to do any jail time.

The FBI and NFL security helped recover the jersey Brady wore in Super Bowl LI’s stunning comeback against the Atlanta Falcons in February. The one No. 12 wore in Super Bowl XLIX against the Seattle Seahawks was also found in the Mexican home of Martin Mauricio Ortega, former director of La Prensa newspaper.

When Brady was asked if Ortega should be punished, Mr. Forgiveness replied, “I really don’t like anyone to ever get in trouble. To me, I’m just happy I was able to get it back. ... My reaction then wasn’t heartbroken. I thought, at the end of the day, it was a jersey.” Ortega reportedly has not been charged.

AYE, WITNESS: Katy Perry is taking her Taylor Swift-shade-throwing, wannabe-“American Idol”-judging self on tour to promote her “Witness” album, with tickets on sale starting next month. The aptly named “Witness: The Tour” winds its way northeast in the fall, landing at Mohegan Sun on Sept. 21 and Boston’s TD Garden on Sept. 29. Wonder what color her hair will be by then.