American Express: One Time $10 Statement Credit w/ $50 Purchase at Sports Authority

To get this deal:
1. Click here and sync your Amex card to your Twitter account
2. From your Twitter account, tweet #AmexSportsAuth to add the offer to your synced Amex Card
Note: be sure that you receive an "@ reply" message from @AmexSync stating that this offer has been added to your synced Card
3. Make a single purchase of $50 or more one time with your synced card at any Sports Authority Online/In-Store purchases by August 31, 2015 and receive a $10 Statement Credit.
4. A statement credit should be issued within 90 days after 8/31/15 after your qualifying purchase.