Chicago Bears play in London in 1986

Chicago Bears quarterback Jim McMahon uses his helmet as an impromptu chair while watching the team's workout in London's Crystal Palace sports complex. Bears back-up quarterback Steve Fuller (4) and wide receiver Lew Barnes (92) join him on the sideline.

Chicago Bears quarterback Jim McMahon, sporting army fatigues, arrives at London's Heathrow Airport.

Chicago Bears defensive back Vestee Jackson looks around outside London's Hard Rock Cafe.

Chicago Bears linebacker Mike Singletary doffs a top hat, borrowed from a hotel doorman, as he heads to dinner in London.

Chicago Bears quarterback Jim McMahon has a drink on a Wednesday afternoon visit to a London pub.

Chicago Bears wide receiver Willie Gault, right, hangs off the back of a London bus with teammates Tom Thayer, second from right, and Mark Bortz during a team outing in London.

Chicago Bears running back Walter Payton shows the way to the buses on arrival in London.

William "The Refrigerator" Perry signs autographs on his arrival at London's Heathrow Airport.

Chicago Bears Marvin Ayers is brought down by Dallas Cowboys Michael Downs during American Bowl '86.

A London bobby stands quietly as fans cheer their favorite teams at the American Bowl in London in 1986.

Chicago Bears running back Walter Payton looks around for another souvenir photo during an outing in London, which included a stop at Buckingham Palace.

Chicago Bears quarterback Jim McMahon and head coach Mike Ditka look over London's Wembley Stadium, the day before the Chicago Bears are set to play the Dallas Cowboys in American Bowl '86.

Chicago Bears William "The Refrigerator" Perry does stretching exercises before a team workout in London. Perry became a favorite among the newspapers in London, with each paper carrying stories and photos of the "22-stone" (308 pound) player.

Chicago Bears quarterback Jim McMahon sweeps wide as offensive lineman Tom Thayer (57) moves out to block during practice in London, two days before their exhibition game against the Dallas Cowboys at Wembley Stadium.

Chicago Bears quarterback Jim McMahon, wearing army fatigues, arrives at London's Heathrow Airport.

Dallas Cowboys running back Tony Dorsett, left, and wide receiver Tony Hill take in the sights outside London's Buckingham Palace.

Chicago Bears quarterback Jim McMahon eludes Dallas Cowboys John Dutton (78) and Jim Jeffcoat (77) on a third down with eight yards to go in first quarter action against the Dallas Cowboys when the Bears played the Cowboys in American Bowl '86 held at Wembley Stadium in London, England.

Chicago Bears offensive tackle Paul Blair, left, and guard Stefan Humphries try on hats during a shopping visit to Burberry's in London.

William "The Refrigerator" Perry is the main attraction at the Crystal Palace Stadium in London.

Chicago Bears William "The Refrigerator" Perry holds the ball to celebrate his touchdown from the Dallas one-yard line in American Bowl '86 held at Wembley Stadium in London, England. The Bears won 17-6.

A group of British football fans use the Stars and Stripes to protect themselves from the rain while the Chicago Bears play the Dallas Cowboys in American Bowl '86 held at Wembley Stadium in London.

Chicago Bears William "The Refrigerator" Perry, the "22-stone" footballer, arrives at London's Heathrow Airport with his wife, Sherry.

The August 11, 1986, Sports Illustrated Cover featured a portrait of Chicago Bears William "The Refrigerator" Perry (72) and Dallas Cowboys Ed "Too Tall" Jones (72) with a Sentry of the Grenadier Guards at St. James's Palace on Pall Mall in London.

Chicago Bears Shaun Gayle tries to elude Dallas Cowboys Nate Newton (67) and Mark Tuinei (71) in American Bowl '86.

British children watch Dallas Cowboys players Karl Powe, left, and Claude Perkins practice at the Crystal Palace sports complex in London, England.

Dallas Cowboys Victor Scott (22) and Michael Downs pull down Chicago Bears Dennis Genry (29) during American Bowl '86.