According to Vikings beat writer Judd Zulgad, QB Christian Ponder has a fractured rib near his heart, and will miss 3-4 weeks.
Here's his tweet: "I'm guessing that with Christian Ponder having a fractured rib near his heart he will be out because of injury for three to four games."
Fantasy Impact:
Matt Cassel will continue to start and will be an option for those streaming at the QB position. He has a bad matchup (Carolina) coming out of the Vikings' Week 5 bye, but after that, he'll face the Giants, Packers, Cowboys and Redskins (if he continues to start), four teams who have had their troubles defensively against the pass.