Atkins' contract is up at the end of the season, and he has decided to take the vacant post at the Memorial Ground instead of looking for an extension. He's agreed a two year deal with the Pirates.
Following the announcement, Oxford suspended him, and player/coach David Oldfield will take charge of the team at Mansfield tomorrow.
Phil Bater has been caretaker boss of Rovers since Ray Graydon was sacked in January, just 9 months since getting the job. They sit precariously 4th from bottom in the table, while Atkins leaves Oxford just a point off an automatic promotion place.