Doncaster enter Saturday’s contest without a permanent manager after Wellens was sacked, with Rovers languishing in 23rd place in League One.
Wellens’s final match in charge was an EFL Trophy game in midweek, with Doncaster eliminated after suffering a 2-0 defeat away to Crewe Alexandra.
It will be Gary McSheffrey’s responsibility to take charge of first-team affairs on Saturday, and the interim boss will look to end a run of three consecutive defeats.
Saturday’s hosts will be hoping that the FA Cup acts as a welcome distraction from a disappointing league campaign, and they will be aiming to emulate last season’s run, when they reached the fourth round before being eliminated by West Ham United.
A 1-0 victory over Yorkshire rivals Scunthorpe United sealed their place in the second round, but after failing to score in their last four games, Doncaster may be pessimistic about a positive result on Saturday.
Mansfield head into the fixture in a buoyant mood after suffering just one defeat in their five league games, and that recent run of form has seen Nigel Clough’s side climb up the League Two table.
Their attention will now turn towards cup action, and Mansfield sealed their place in the second round with a superb 1-0 away victory against Sunderland.
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The Stags will be looking to reach the third round of the FA Cup for the second season in a row, and after winning six of their last seven matches, they will be confident of doing so.
Saturday’s visitors collected their most recent victory last weekend, when they travelled to Crawley Town with goals from Oliver Hawkins and Rhys Oates helping Mansfield to a 2-1 win.
Their upturn in fortunes has been largely thanks to their ability to find the net with ease, demonstrated by the fact that they have scored 16 goals in their last seven games