NFL Combine and Pro Day Training with Jim Kielbaso of Impact Sports Performance in Novi, MI. Jim has been helping football players dominate their combine or pro days since 2004 with impressive results. He has been featured on the Big10 Network, and was hired by the University of Michigan football program to prepare their graduating seniors for the NFL Combine. Visit impact-sportspe... or find him on social media for more information on speed training, football training, combine training, and sports performance.