NAPA, California – Oakland Raiders' right guard, Gabe Jackson, suffered a MCL injury in his left knee and is expected to fail two months Thursday joint training with the Los Angeles Rams. He was rolled up from behind during a live team drill just minutes after he was involved in a fight with Ram's defensive device, Aaron Donald.
Jackson was later seen on crutches and wore a brace on his left knee. The Athletic first reported the extent of Jackson's injury.
"We are obviously concerned," said Raiders coach Jon Gruden after the training session. "Really worried about him, but we'll get more information here and can be specific to you, I do not want to speculate, shame, hope he's okay."
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Jackson, a third-round pick of Raiders in 2014, who signed a $ 56 million five-year extension in 2017, is likely to be the right wing of the rebuilt Raiders line anchor. Right Attack Trent Brown signed the richest deal for an offensive lineman in the history of the league in this offensive season with $ 66 million.
After Jackson's retirement, Raiders Denver Kirkland and the new Sweeper / Substitute Center Jordan Devey switched to the right-hand starter for the rest of the training.
The Raiders are already miserably on the sidelines, with left-wing guard Richie Incognito serving a NFL-mandated ban for two games early in the season, and Denzelle Good retiring from spinal surgery at least two months after the off-season.
Jonathan Cooper, who will be racing at the start of the season instead of Incognito, could possibly move to the right if Jackson misses out for a long time.
"We have to put our heads together to see where we are going if we have to," Gruden said.