Rodallega was the subject of much speculation over the closing days of the transfer window but has remains a Wigan Athletic player until at least the end of the season.
Speaking about the Columbian international striker, Martinez said: "I am delighted that a player of the quality of Hugo is with us for the next 15 games. Everything else is not a worry at all.
"Hugo has shown over the last few seasons how important, how effective and what an impact he can have on a football pitch and we need to make sure that he is as sharp as he has always been.
He needs to fully recover from his small soft-tissue injury and make sure he is ready for the run-in to the season."
Rodallega sat out the game with Tottenham on Tuesday evening amid the craze of transfer speculation surrounding his future. A return for Saturday's visit of Everton is expected.