Mr. Rohrer said the truth didn’t come easy for some.

“I’ve given at least five people heart attacks with this news,” he said. “But for the most part, many of my closest friends, including some of my former teammates with the Cowboys, could not have been more happy and supportive.”

It was a first marriage for Mr. Ross, and second for Mr. Rohrer, whose first ended in divorce a decade ago. He has two children from that marriage: Isabella Rohrer, now 15, and Dondillon Rohrer, a 14-year old freshman playing high school football.

They will be joined on Sunday by 150 guests, most of whom will receive Champagne upon arrival, as well as a rose quartz stone (a symbol of love), and an amethyst stone (symbolizing friendship), in which to hold and place their hopes and wishes for the couple during their exchange of vows before the Rev. Jon Olson, a Universal Life minister.

After a photo session with both grooms and their families, guests will dine on grilled lamb chop lollipops with carrot harissa and market vegetable kebabs, and also enjoy a full raw bar with crab, shrimp and fresh oysters complete with live shucking and desserts, including a wedding cake by Sweet Lady Jane.

The two days leading up to the wedding will be just as festive for the couple. On Friday, they will host 50 of their closest friends and family, complete with dinner and a rooftop toast, at the Pali House in West Hollywood, and on Saturday evening they will host a Texas-style hoedown honoring their connection to the state with yellow roses and a barbecue at Sunset Ranch in Beachwood Canyon, Los Angeles.

Mr. Rohrer said that one of his wedding invitations was returned by a doctor friend “who actually thought it was a joke.”