The Vikings signed Rudolph on Thursday, Rob Kleifield of the team's official site reports. He is now getting another shot with a new club, a little over a week after Seattle let him go.
Rudolph is not the biggest player on the field, but he showed something useful at Toledo: ability as a kick returner. That kind of skill tends to get a player noticed when rosters are thin and teams are looking for anyone who can contribute on special teams right away.
It is a modest path to making a roster, but special teams coverage has always been a door opener for undrafted players trying to stick around.