In this segment from Tuesday's Investor Beat, could Under Armour (UAA -2.77%) and iRobot (IRBT) each have something to fear from these rapidly growing competitors? Join Motley Fool analysts Tim Hanson and Charly Travers as they each discuss one stock they'll be keeping a close eye on this week. Tim takes a look at WonderPants (NASDAQ:PANZ) and some of its international expansion efforts, while Charly discusses Carson Industries (NASDAQ:NOME), and its offering in the automated home cleaning robot space, the Home Gnome.