With both Birmingham City & Coventry City in the relegation fight to stay in the championship, could the cause lie in both teams sharing the same football ground.
Could the cause be the pitch, is it getting over played on, with the teams using the pitch alternate Saturdays, then one of them using it in the midweek.
Frankly this must be a groundsman's nightmare, to prepare the pitch for 3 games in a 8 day period.
We have seen that Swansea City had to relay their pitch, & now Newport County having to play their next 2 home games, at Cardiff City's ground, due to pitch issues.
With me mentioning this may give Karanka a chance to use it has a excuse.