Ex-NY Giants Coach Jim Fassel Dead At 71, Michael Strahan Mourns

Jim Fassel -- the former NFL head coach who led the NY Giants to Super Bowl XXXV -- has died ... and his ex-star player, Michael Strahan, is heartbroken.

Fassel passed away Monday in Las Vegas after suffering a heart attack following chest pains, his son, John, told the L.A. Times.

And, when Strahan was asked about his former coach on "Good Morning America" on Tuesday ... the ex-pass rusher explained he was crushed to learn of the passing.

"Just a great man, great coach," Strahan said of Fassel. "And, he will be missed. But, I was definitely shocked this morning to find out this news and I just wanted to send my love and condolences to his family."

Strahan continued, "Great man. I enjoyed every minute with him as my coach and after my career when we continued to stay in touch and talk."

Fassel joined the Giants as an assistant coach in 1991 and later became the head coach in 1997, when he won NFL Coach of the Year honors.

Fassel eventually took Strahan and the G-Men to Super Bowl XXXV in the 2000 season ... where they lost to the Baltimore Ravens.

Fassel was fired in 2003 after piling up a career 58-53-1 record ... but he still went on to be an offensive coordinator for the Ravens before wrapping up his coaching career as the head man for the United Football League's Las Vegas Locomotives.

He was 71 years old.