Ravens QB Jackson exits practice due to quadriceps injury

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Baltimore Ravens quarterback Lamar Jackson's difficult week has continued after he failed to complete practice due to a quadriceps injury.

Jackson was listed on the Ravens injury report as limited, after he exited early to receive treatment from a trainer on Wednesday.

The Ravens QB also did not address reporters in his usual spot on Wednesday, having not spoken publicly since his since-deleted vulgar social media reply on Sunday.

Following Sunday's 28-27 loss to the Jacksonville Jaguars, Jackson posted and then deleted a response on Twitter to a fan criticising him following his side's defeat, one which included an apparent homophobic reference.

Ravens head coach John Harbaugh was unable to provide an update on Jackson's status on Wednesday, ahead of Sunday's game against the Denver Broncos.

The 25-year-old has only missed four games due to injury in his five-year NFL career. The Ravens are 7-4 and lead the AFC North.