Troy Tulowitzki: Good shortstop, bad gamble - MLB Daily Dish
How the Troy Tulowitzki trade hampered an era of Colorado Rockies
Tulowitzki Struggles in Year Two - Long Beach State University
Former Colorado Rockies star Troy Tulowitzki retires
Gammons: For Troy Tulowitzki and other former major-leaguers
Time to Trade Tulo: Why the Rockies Must Move Their All-Star
5-time All-Star Tulowitzki retires after leg injuries - The San
Troy Tulowitzki announces his retirement - Beyond the Box Score
Hungry to get better, Bo Bichette worked with former Blue Jays