I went to see the Irish vs the U.S Soccer match and I had to use my phone as well.
no paper tickets! only mobile unless your tickets are at will call!
I was there a couple weeks ago for the women's soccer. The tickets were not printable and I had to show them on my phone.
I went to see the USA soccer play verve Irish and we all had to download them to are phone. They would not let it be paper.
Tickets can be downloaded as PDF files, and scanned from the smartphones. Or that file can be printed, the important thing is that the barcode or QR code have to be legible to an optic scanner.
I recall that being true but you can just screen shot it, or if you know you will have signal you won't have to download them just open then up when you get there. But usually signal gets fuzzy when you got a large group in one place.
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