In a special Wednesday edition of the Wobcast vikings.com's Mike Wobschall and I talk about the storylines in the NFL through the first four weeks of the season, including the undefeated Kansas City Chiefs and catch up with Good Morning Football's Peter Schrager at U.S. Bank Stadium.

01:00: Recap of Dalvin Cook's injury

Wobby and I talk about the devastating injury to Vikings star rookie running back Dalvin Cook and what options the team has as far as replacements for Cook and roster moves that can be made.* *

03:06: Vikings Head Coach Mike Zimmer on Cook

Vikings Head Coach Mike Zimmer confirms Cook's ACL tear and talks about where the Vikings go from here.

09:27: Michael Floyd returns

The Vikings will add wide receiver Michael Floyd to the roster before Week 5's game against the Bears. Wobby discusses what this means for the offense going forward.

14:16: Peter Scharger interview

FOX Sports sideline reporter for the last two Vikings games and host of GMFB Peter Schrager joined us pregame on the sidelines before the Lions game at U.S. Bank Stadium to discuss the Vikings offense, the scene at U.S. Stadium and hosting the NFL's national morning show each wee.

16:20: NFL quarter season recap

Wobby and I talk about five of the top storylines around the league and what has impressed us so far as the season is alread four weeks in.

23:30: Power Rankings chat

Wobby talks NFL Power Rankigns through the first four weeks and talks about the surprising teams that he sees in his top five.