The Vegas Golden Knights opened up the preseason Sunday vs. the San Jose Sharks, and all it took was 24 seconds to fall behind in a game they ultimately lost 5-2. Henry Thrun opened the scoring for the Sharks, and nearly 9 minutes later the Sharks added a pair of goals in the span of 46 seconds to make it 3-0. Ivan Barbashev got the Golden Knights on the board with a goal of his own at 16:43 of…