According to the 'Daily Mail', Bolton want to bring Mitchell in on a season-long loan deal. Although the transfer window shuts at 5pm on Thursday, the negotiations have up until August 31st to be concluded as Championship clubs can still bring in players on loan.
Mitchell is a long way from the United first-team with both Ashley Young and Luke Shaw ahead of him, and so a move to the Macron could allow him valuable game-time.
The left-back spent last season on loan at Scottish club Hearts, who are also interested in the player.
Mitchell came off the bench in Sunday's pre-season game against Bayern Munich at the Allianz Arena, in which the 'Red Devils' were defeated 1-0.