Oakland Raiders running back Marshawn Lynch will miss an extended period of time with a groin injury, a source confirmed to ESPN.
<pThe Raiders have discussed placing Lynch on injured reserve but no decision has been reached, the source said.
<pThe news was first reported by NFL Network, which said Lynch would be sidelined for at least a month.
<pLynch has rushed for a team-high 376 yards on 90 carries (4.2 yards per carry) and three touchdowns this season. He also has 15 receptions for 84 yards.
<pESPN NFL Insider Dan Graziano contributed to this report.