This photo is in Joy Goodwin's The Second Mark (about SLC). The caption reads: "A pair of world champions practice on the windowed rink [in St. Petersburg]." Does anybody know who they might be? At first I thought that was Denis Petrov (in which case the caption about the world champions would be wrong) but maybe it's Shishkova and Naumov? I'm really not sure. Any help would be appreciated!