Kareem Martin visits Minnesota Vikings Posted Apr 22, 2014 Mike Zimmer speaks in glowing terms about Michael Johnson, his former defensive end in Cincinnati. Now, Zimmer’s Vikings are looking at a guy who reminds some of Johnson. A source close to the situation said North Carolina defensive end Kareem Martin visited Minnesota last week. Martin is considered most likely to be picked in the second or third round of the May 8-10 NFL draft. (St. Paul Pioneer Press)