The third overall pick in the 2017 draft, Heiskanen missed his chance to take part in training camp last year due to a concussion, but he'll cross the Atlantic this September and might never go back to Finland. Still only 19 years old, he's an effortless skater and excellent passer with a dangerous shot who plays with poise in his own end and a killer instinct in the attacking zone. While Heiskanen doesn't have ideal size, he isn't afraid to get physical, and his overall skill set marks him as a future top-four blueliner and two-way asset, if perhaps not quite a true No. 1 defenseman. The Stars have other young offensive defenseman to try and work into the lineup, which could provide Heiskanen with a bit of a speed bump, but if he looks ready in camp don't be surprised if he makes the jump straight to the NHL.