Nothing but some accessory work and Conditioning.
Prowler: 12x20 yards My son, Al and I whipped through these pretty darn fast.
Mag Bar (4 of them) Lat Pulldown: 2x15x170
Chest Supported Row: I used a bench set up and the American Bar set up.
4 sets of 8 x 135 plus two sets of chains per side
4 way Neck: 1x15x5.0
Bike Sprints
Running Sprints: 10x50 yards. Old hips don't glide well. I can still take my son in 10 yards, but after that, my range of motion turns Yodalike. Depressing, I was fast once upon a time.