The pullup is unequivocally one of the best upper-body exercises around—which is why it’s one of Vernon Davis’ go-to training moves. In this special edition of our “One-Up” series, the San Francisco 49er (and Jamba Juice franchisee) shares what he’s been doing during the off-season to “one-up” defenders this upcoming football season. Last week was all about the box jump. This week, Vernon takes you through pullups. Set your timer for 30 seconds and see if you can beat Vernon’s score. Watch the video for some helpful tips—then stick around until the end to see outtakes from our shoot!