article_snippet: Bush will head back to Bush native California to fill the Frank Gore-sized hole in the 49ers backfield.
article_snippet: ESPN first reported the deal after Bush opted not to join the New England Patriots.
article_snippet: Bush trains with the Lions ahead of the Lions game with the Atlanta Falcons in London last year .
article_snippet: Bush five seasons in New Orleans yielded 33 touchdowns in 60 games and a Super Bowl victory.
article_snippet: Bush moved to Miami Dolphins in 2011.
article_snippet: Bush rushed for 2,072 yards, scoring 15 touchdowns over two seasons before joining the Lions in 2013.
article_snippet: And Bush short stint has seen the retirement of linebacker Patrick Willis, the loss of guard Mike Iupati to NFC West rivals Arizona and long-term staple Gore
highlights_snippet: Bush joins the 49ers after two seasons in Detroit .
  
highlights_snippet: But Bush was injured for the majority of last season with an ankle injury .