For the first time in his career, uncertainty defines Troy Tulowitzki. He believes his surgically repaired left leg will be fine, but he won't know until he plays several spring training games. He wants to stay in Colorado — it's why he agreed to a Rockie-for-life contract through 2020 — but realizes there are no guarantees if the franchise doesn't climb out of the abyss. "With my leg, I just don't know. I feel great, but I am not going to throw it out there that I won't get hurt. I don't know that. But I have done everything possible to prepare for this season," Tulowitzki said. "With (manager) Walt (Weiss) here, it's a fresh start. I am excited. It's a new chapter in my book. But we need to turn things around quickly, and if we don't, there's a possibility I won't be here. We are a team that doesn't spend a whole bunch of money, so if we don't get this going in the right direction, anything can happen." In a wide-ranging, 30-minute interview in the Rockies' clubhouse at Salt River Fields, the two-time all-star discussed several topics with The Denver Post, including leadership, his relationship with fellow all-star Carlos Gonzalez and his desire to remain at shortstop.