Baltimore Ravens offensive line coach Joe D’Alessandris died on Sunday morning after suffering an “acute illness,” the team announced. He was 70.

D’Alessandris was hospitalized 11 days ago, according to a team announcement at the time. Ravens coach John Harbaugh told reporters during training camp that D’Alessandris developed complications and an illness from a surgical procedure earlier this summer.

“Coach ‘Joe D.’ was a man of integrity and a man of faith,” Harbaugh said in a statement on Sunday. “He made us all better.”

D’Alessandris spent more than four-and-a-half decades as an offensive line coach, including stints in the Canadian Football League, with four major college programs from 1994-2007 and with the Chiefs, Bills, Chargers and Ravens of the NFL. He had been with the Ravens since 2017, his longest stint with any team. Five Ravens offensive linemen were named to the Pro Bowl under his tutelage.

“‘Joe D.’ was a rock, a great coach and a better person,” Ravens GM Eric DeCosta said in a statement. “He cared about the team deeply, exhibiting a relentless passion to excel while displaying genuine love for his players.”