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Marlon Mack's stint with the San Francisco 49ers has come to an end.

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The 26-year-old running back was duly delivered by the 49ers on Tuesday.

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Mack quits the team without taking a single offensive action.

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With the Indianapolis Yearlings for five seasons,

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By signing with the Houston Texans, Mack stayed in the AFC South.

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Despite this, he was not included on their 53-man roster.

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after rookie Dameon Puncture kept the backfield under control.

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Mack was added to the 49ers' training staff and moved up to the exciting programme.