Bob Brown, a member of the College and Pro Football Hall of Fame, died Friday surrounded by family and friends.

He was 81 years old.

Brown played in the NFL from 1964 to 1973, was a nine-time All-Pro, and was widely considered one of the best offensive linemen of his day. He played with the Eagles, Rams and Raiders during his prolific 10-year professional career.

He was also named to the NFL’s 1960s All-Decade Team.

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Pro Football Hall of Famer Bob Brown poses with his bust during the 2004 NFL Hall of Fame induction ceremony on August 8, 2004, in Canton, Ohio. (David Maxwell/Getty Images)

According to Brown’s wife, via a statement from the Pro Football Hall of Fame, he suffered a stroke in April. She said that she had been in a rehabilitation center ever since.

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«Bob Brown demonstrated different personalities on and off the field,» Hall of Fame president Jim Porter said in a statement. «On the field, he was as fierce an opponent as any defensive lineman or linebacker I’ve ever faced. He used every tactic and technique, and sometimes brute force, to crush the will of the person on the other side of the line. And he took pride in doing it.

«Off the field, however, he demonstrated a calm, soft-spoken and caring nature that his son, Robert Jr., eloquently captured when he presented his father for consecration in 2004. The Hall extends its thoughts and prayers to CeeCee and Robert Jr. . for his loss.»

Bob Brown speaks at the Hall of Fame ceremony

Pro Football Hall of Famer Bob Brown speaks during the 2004 NFL Hall of Fame induction ceremony August 8, 2004, in Canton, Ohio. (David Maxwell/Getty Images)

Brown was the No. 2 overall pick in the 1964 NFL Draft after being named a unanimous All-American in his final season with the Nebraska Cornhuskers. The soccer program has since retired its No. 64.

Brown was also selected in the first round of the 1964 AFL Draft.

Bob Brown in Canton, Ohio

Pro Football Hall of Famer Bob Brown gestures as he approaches the podium during the 2004 NFL Hall of Fame induction ceremony August 8, 2004 in Canton, Ohio. (David Maxwell/Getty Images)

Brown played offensive line alongside Gene Upshaw, center Jim Otto, and tackles Art Shell and Ron Mix when he was with the Raiders in 1971. Each of those players has also been enshrined in the Pro Football Hall of Fame. .

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The late John Madden, who coached Brown during his tenure with the Raiders, once praised the former offensive lineman’s tenacity.

«Bob was the most aggressive lineman to ever play,» Madden said via the official Pro Football Hall of Fame website.