(Minneapolis, MN)  --  The Minnesota Vikings host the Tennessee Titans in NFL football tomorrow (SUN) at the Metrodome in Minneapolis. You can hear thd game on KWLM 1340 on the AM dial.  The Vikings have been one of the surprises of the NFL thus far at 3-and-1.  Minnesota ran back the opening kickoff for a touchdown and also returned a punt for a score in a 20-13 win at Detroit.  The Vikes are tied with Chicago in the NFC North at 3-and-1.  Running back Adrian Peterson is coming off his first 100-yard game of the year.  It's the third road game in four weeks for the Titans, who are coming off a 38-14 loss at Houston last Sunday.  Tennessee is 1-and-3 overall.  Quarterback Jake Locker is out this week with a shoulder injury, leaving the reins to veteran Matt Hasselbeck.  Kickoff is set for 3:25 p.m.