This tweet looks to be from just some kind of Virginia Tech fan. But Kam Chancellor re-tweeted it. Says John Graves was signed by Seattle on Wednesday. Practice squad maybe? Danny highlighted Graves as a 5-tech style DE he liked, as a UDFA after the draft. Apparently Houston took a shot on him in training camp. This is far from a confirmation, and seeing it not reported anywhere else gives cause for suspicion, but I'm bringing it to our collective attention to keep an eye on.