OTTAWA — A capsule look at the 13 teams competing in the April 1-9 world men’s curling championship at TD Place. Teams listed in alphabetical order, athletes from skip to lead. CANADA Brad Gushue, Mark Nichols, E.J. Harnden, Geoff Walker Gushue guided the St. John’s, N.L.-based team to a world title in 2017 but settled for silver in two subsequent appearances. Harnden’s brother, Ryan, has joined the team as an alternate. CZECH REPUBLIC Lukas Klima, Marek Cernovsky, Radek Bohac, Martin Jurik The