Christian McCaffrey officially turned 30 this offseason, but don't expect the San Francisco 49ers star running back to spend much time thinking about his age. As NFL training camps get underway around the league, McCaffrey made it clear he's focused on one thing: continuing to improve. According to Nick Wagoner, the All-Pro running back brushed aside any concerns about reaching the milestone birthday. “I don't make a big deal out of the whole age thing,” McCaffrey said. Running backs often face questions about longevity once they reach 30, but McCaffrey has never been interested in outside narratives.