The Union's match against Seattle Sounders FC is the third of three designs the Union are giving to fans for the Re-DOOP temporary tattoo contest.
Fans will get the third Strength in Union temporary tattoo when they enter the gate for the Union's match against Seattle Sunday afternoon.
Upon entry into Talen Energy Stadium, fans should apply the temporary tattoo and take a photo of them wearing it, then post the photo to social media, tagging the Union and including #ReDOOP.
Each social media post counts as an entry; the more posts, the more chances to win.