As Kelce breaks the record for most consecutive regular-season starts by an Eagles player, Jon Runyan understands the mindset and toughness required for NFL longevity.

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It takes some luck and a whole lot of toughness to play 145 straight regular-season games, according to former Eagles right tackle Jon Runyan, who has held the franchise record of 144 before Kelce tied it against the Los Angeles Rams last Sunday.

In the interest of self-preservation as he aged into the twilight of his career, Runyan said he learned how to conserve his energy on certain plays so he could go all-out on others. He couldn’t throw his body around with abandon as he did when he first entered the league.