The League One outfit are currently in administration and under a transfer embargo, but Murphy wants his side to be in the best possible shape on the pitch ahead of the start of the season.
The 31-year-old told BBC Sport: "We're here to play football. Let whatever happens off the field just sort itself.
"We're in administration and we've got the embargo hopefully that can be lifted and then we can get back to business.
"We all want to play at the Ricoh. It's a great place to play, but for now we just have to concentrate on working hard here at the training ground."
The Republic of Ireland international has made 103 appearances for the Sky Blues since joining the club in 2011.