According to Marc Carig of the Star-Ledger (source), Yankees catcher Francisco Cervelli should be back from his foot injury sometime during the Yankees' next homestand. The Yankees return to the Bronx on Monday, so Gustavo Molina's time in the Bronx may be limited.
Molina, the current back-up catcher, has played in only one game for the Yankees during his time with the team. The large, borderline obscene number of off-days and rainouts that the Yankees have had have allowed them to rest Russell Martin plenty, allowing them to not even need to use Molina.
Cervelli, 25, has been rehabbing with the Tampa Yankees and is currently 2-7.