By Tzvi Machlin There was a lot of rumoring and speculation over the weekend regarding potential trade offers for Seattle Seahawks wide receiver D.K. Metcalf. It took a few days, but the man himself has weighed in. Taking to Twitter this morning, Metcalf addressed a recent report from NFL insider Ian Rapoport that teams have been “calling Seattle” about trading for him. He had just three words in response to the “report.” “Haven’t heard anything,” Metcalf wrote, citing himself at the end. Metcalf’s tweet has quickly gone viral with over 10,000 likes and 2,000 retweets in just under half an hou…