Gunnarsson will wear a cast on his arm after breaking it against Plymouth and returns after missing the Sheffield Wednesday win through suspension.
Jay Tabb has over-come a bout of flu and is also available.
Coleman's main worry is with Robbie Simpson who suffered a gashed ankle at Hillsborough that required stitches.
For Swansea, Dimi Konstantopolous will not play as part of his loan conditions. The Greek will be replaced by Dorus De Vries, who will wear a face mask after suffering a fractured cheekbone.
Coventry City Season ticket holders can buy two matchday tickets at the reduced price of £10 for adults and £5 for concessions with Swansea supporters now being able to pay on the gate.