Eli Manning spent the offseason working on his fastball.
Sort of.
The Giants' 38-year-old quarterback turned to the sport of Jamie Moyer (49 when he retired) and Bartolo Colon (46, and not officially retired) to extend his longevity this offseason, changing up his training regimen to focus on arm strength and endurance as he gets set to embark on his 16th season in the NFL.