However, he refused to rule out more signings as there is still a month left in the transfer window and players could become available during that time.
When asked about Sneijder, Gill told The Guardian: "We didn't progress that one."
"I'm not doing anything on anything at the moment, so they [potential deals] are all currently dead.
"But the important point is that you never know. I've been around in football long enough to know things change quickly."
"Somebody may become available and we can say at that point we are interested."
Speculation over a move for Sneijder has currently out of news after United manager Sir Alex Ferguson dismissed the reports that the playmaker would move to Manchester.
However, it is thought he is still looking for a replacement for the retired Paul Scholes despite spending around €57 million on new signings Phil Jones, David de Gea and Ashley Young.
