Report: 49ers working out more receivers after Aiyuk injury

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The merry-go-round of receivers working out for the 49ers has continued. 

After rookie Brandon Aiyuk went down Sunday with a hamstring injury, the 49ers once again are looking for more help. NFL Media's Ian Rapoport reported Tuesday the 49ers are working out receivers Johnny Holton, Kevin White, River Cracraft and Justin Hardy.

Among those four players, White certainly is the biggest name. White, 28, was the No. 7 overall pick by the Chicago Bears in the 2015 NFL Draft. But his career hasn't quite lived up to expectations.

White fractured his leg the summer after being drafted and missed his entire rookie year. He only has played 14 games in the NFL and hasn't scored a single touchdown yet. The West Virginia product didn't play any regular season games last year after being cut by the Arizona Cardinals in August.

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White, 6-foot-3 and 216 pounds, ran a 4.35 40-yard dash at the 2015 NFL Scouting Combine. He had 1,447 receiving yards and 10 TDs his senior year at West Virginia.

The 49ers currently are without receivers Deebo Samuel, Jalen Hurd, Richie James and now Aiyuk. Coach Kyle Shanahan is looking for as much help as possible before the Sept. 13 season opener against the Arizona Cardinals.