Hayne fans might call his return to the 49ers' 53-man squad a Christmas miracle, while others upset at the injury-ravaged team's treatment of the former NRL star the past two months probably would call it karma.
The 49ers announced on Sunday they have promoted Hayne and inserted him back in their 53-man active roster, making him eligible to play the Detroit Lions on Sunday (Monday 5am AEDT).
The resurrection of Hayne's NFL career comes after the 49ers axed him on Halloween and two days later signed him to their practice squad.
