American Express card members can get a $10 statement credit on a $20 onsite purchase at the 2013 US Open Tennis Championships from August 26th to September 13, 2013.
Just Tweet #AmexUSOpen to get $10 back on a purchase of $20 or more made onsite at the US Open with your synced American Express card.
Registration is limited and expires on September 13, 2013.
Check out the Details of this promotion for more information.
There are also a variety of other American Express Sync Promotions available right now if you are an AMEX card member.
Take advantage of this offer for a $10 statement credit on $20 in spending if you plan on attending the US Open.