72-HOUR TICKET SALE: SUPER HERO WEEKEND It's a Marvel Super Hero™ Weekend as the #SBCubs join Marvel's Defenders of the Diamond on 7/20 with a special character appearance by Thor and it's Marvel Super Hero™ Day on 7/21 with a character appearance from your friendly neighborhood Spider-Man! #marvel #superhero #cubs #baseball #spiderman #thor #captainamerica #ironman #avengers #loki #doctorstrange