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NFL notes: Former BC star Jo-Lonn Dunbar suspended

St. Louis Rams linebacker Jo-Lonn Dunbar was suspended Wednesday for four games for violating the NFL’s policy on performance-enhancing drugs.

Jeff Roberson/Associated Press/File 2013

St. Louis Rams linebacker Jo-Lonn Dunbar was suspended Wednesday for four games for violating the NFL’s policy on performance-enhancing drugs.

Rams starting linebacker Jo-Lonn Dunbar was suspended Wednesday for four games for violating the NFL’s policy on performance-enhancing drugs.

The fomer Boston College star, who was second on the team with a career-high 157 tackles last season, is able to participate in all team activities prior to the suspension, which begins with the season-opening game against Arizona. He will be able to practice and play in all exhibition contests prior to the opener.

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Dunbar made a brief statement and took one question in a short media session Wednesday. He appeared emotional as he walked away following the comments.

‘‘I just want to say that I did not take a performance-enhancing drug,’’ Dunbar said. ‘‘I mistakenly took something that prompted a failed drug test.’’

The 27-year-old Dunbar also will miss games against Atlanta, Dallas and San Francisco. He eligible to return Sept. 27.

Brutal day for Smith

Coach Rex Ryan says Geno Smith had his ‘‘worst’’ day of training camp, calling the Jets rookie quarterback’s performance ‘‘brutal.’’ Smith, competing with Mark Sanchez for the starting job, was intercepted four times, including three in 11-on-11 team drills. Smith says his sprained right ankle feels ‘‘progressively better,’’ but Ryan says the rookie has been affected a bit this week because of the injury. The Jets have not decided on a starter for the team’s exhibition game Saturday night against Jacksonville, but Sanchez has outperformed Smith this week . . . Washington quarterback Robert Griffin III appeared in his first 11-on-11 play of training camp Wednesday in Richmond as he works his way back from reconstructive knee surgery. Griffin ran 16 plays with the first-string offense against a scout team that was mimicking the Steelers defense in preparation for the Redskins’ next exhibition game.

More trouble for Miller

Broncos Pro Bowl linebacker Von Miller, already facing a suspension for violating the NFL’s drug-abuse policy, is now confronted by charges that he failed to show up in court on misdemeanor traffic violations. He was arrested in the Denver suburb of Centennial on Sunday and released. Miller, 24, is facing a four-game suspension for violating the drug-abuse policy. He has appealed and a hearing is scheduled for Thursday . . . 49ers defensive lineman Demarcus Dobbs was suspended for the Week 1 game against Green Bay for a violation of the NFL’s substance abuse policy. The 49ers say Dobbs will be eligible to return to the active roster Sept. 9, a day after the reigning NFC champions’ season opener at home against the Packers . . . Bengals receiver A.J. Green returned to practice on a limited basis, ending a nearly three-week absence because of a bruised knee . . . Browns running back Montario Hardesty will undergo arthroscopic knee surgery Thursday, the latest medical setback for Hardesty, who dislocated his right thumb on Monday.

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