Ricketts has not started a game for Wolves since November whlst Johnson has not featured since November.
“We've got five strikers so if Jemal wants to go out on loan and we get an offer we will consider it,” McCarthy told the Birmingham Mail.
“He came in from reserve team football and did make a good impact but for whatever reason then not so much.
“Rohan would be the same, he's out of contract at the end of the season and sometimes it's better to be out somewhere for a month playing a bit of football."