By Nick Selbe The Seahawks quarterback became the unwitting target of the U.S. Open’s Twitter account over the weekend. View the original article to see embedded media. Drew Lock hasn’t taken his first snap as a Seahawk yet, but he’s already become the target of online scorn. Lock was unwittingly the object of online scorn over the weekend, when a random Twitter user took a dig at the U.S. Open, mocking tennis as “not a sport.” The tournament’s official Twitter account didn’t hold back in its response, noting that the person who hurled the insult was a Seahawks fan. When the original poster de…