Some offseason Twitter shenanigans may add some intrigue to the battles in the NFC West this fall.San Francisco 49ers right tackle Anthony Davis and St. Louis Rams defensive end Chris Long engaged his some back-and-forth insults on Twitter on Thursday.It began innocently enough earlier in the week when Davis wrote on Instagram that Long handled him in his rookie season in 2010, but he has since held his own against the Rams star. Long apparently didn't like it and tweeted an insult toward Davis.