Boro emerged from a disappointing trip to Sheffield Wednesday on Saturday on the wrong end of a 2-0 scoreline, and although they remain in second place and just two points behind leaders Derby, Norwich have closed the gap between themselves and the chasing pack to just a single point.
But as they prepare for the Lions’ visit to the Riverside Stadium, Karanka will have only his usual suspects missing. Central defender Daniel Ayala is closing in on a return from his thigh injury, but remains some way away from contention.
But apart from Ayala, only long-term casualties Damia Abella (knee) and Rhys Williams (Achilles) remain on the sidelines.
Millwall are hoping Diego Fabbrini and Gary Taylor-Fletcher will be fit.
Midfielder Fabbrini limped off towards the end of Saturday’s 2-1 defeat at Rotherham, shortly after striker Taylor-Fletcher had to be substituted due to a head wound.
Austrian forward Stefan Maierhofer will also be checked over after missing out at the weekend with a quad injury.
Former Boro midfielder Nicky Bailey is close to fitness after a calf problem but Carlos Edwards, Paris Cowan-Hall (both knee), Lee Martin (foot) and Shaun Cummings (groin) are set to miss out again.