"People were politely congratulating them on their baby girl, and they were very kind," a source tells PEOPLE ...

Shortly after announcing the birth of their baby girl, Buffalo Bills QB Josh Allen and Hailee Steinfeld were in attendance ...

Josh Allen and his wife, Hailee Steinfeld, were invited to Seattle Seahawks quarterback Sam Darnold and Katie Hoofnagle's wedding on Friday.

Bills quarterback Josh Allen and his wife, Hailee Steinfeld, surprise guests by attending Seahawks star Sam Darnold's wedding.

Josh Allen and his wife, Hailee Steinfeld, attended their friend's wedding just a day after they welcomed their first baby.