Running back Frank Gore is signing a one-day contract with San Francisco to retire a 49er, capping off a 16-year NFL career at one of the most punishing positions in football.BREAKING: Frank Gore will retire with in ceremonial signing Thursday via Cam Inman (@CamInman) Gore, who has recently transitioned to boxing, entered the league at 22 years old and is retiring at 39 after . He spent the bulk of his career with the 49ers until 2014, before going to Indianapolis for three years. He ended his career by running an AFC East circuit sans Patriots, playing for the Dolphins, Bills, and finally the Jets.Gore announced his plan to sign a one-day deal with the 49ers in April.MORE:Gore's ridiculous longevity has catapulted or rather, ski- Kenny Young Jersey lifted him near the top of several stat leaderboards among running backs. Here are some of rushing's most notable numbers and where Gore ranks all time.StatTotalRanking (All-time)Carries3,7353Rushing yards16,0003Touchdowns81T-19When it comes to volume metrics, Gore is among the most prolific running backs of all time. He also averaged four yards a carry for his career. While the Mendoza Line for YPC has changed over the years, Gore's 4.3 yards per carry is 10th all-time among running backs with 10,000-plus yards.It's difficult to envision a world in which Gore doesn't get into the Hall of Fame at some point or another. Every running back in the top 16 of all-time rushing yards (excluding Adrian Peterson) is in the Hall of Fame. Gore, however, is a special case in that his longevity could work against him.Gore is also far removed from his one truly "great" season. As a sophomore in 2006, Gore rushed for 1,695 yards, by far a career high. After that, he rushed for 1,000 yards another eight times. His nine 1,000-yard seasons are fifth all-time.A point of concern for Gore is the exclusion of Fred Taylor from Canton. Despite lacking some of Gore's longevity, Taylor was remarkably efficient as a running back for an extended period of time.To Gore's credit, the Hall values longevity, and he has that in spades. Even if he isn't a first-ballot Hall of Famer and it's highly unlikely he is one It's difficult to imagine Gore being kept out of the Hall of Fame indefinitely.MORE:Gore made his profe sional boxing debut in mid-May, knocking outOlaseyinde Olorunsola. He previously in December 2021.Gore has also said he'd like a spot with the 49ers' personnel department.I love evaluating talent and I love ball, Gore said . And they know that I know football players. What its supposed to take to be a football player.The 49ers, for their part, seem open to the idea.Frank is somebody Ive always stayed close with, even after he left for Indy, Niners CEO Jed York said. I would love to have Frank help us. I know his pa sion for the game, his eye for talent. Brian Allen Jersey