With Middlesbrough having won four of their past seven games and scored 20 goals in that period, this is a daunting task for Millwall.
Neil Harris will bid farewell as Millwall boss after the match hoping to have avoided a third successive defeat.
Middlesbrough have won two of their past three league games against Millwall (L1), as many as across their prior nine matches combined against them (D5 L2).
Millwall have won just one of their past eight away league games against Middlesbrough (D3 L4), though it did come in their most recent trip on the opening day of last season (1-0); they could win successive such games for the first time since April 2014.