"The terms of any such acquisition have not yet been finalised and there is no certainty that any transaction will occur," Rank said in a statement.
The deal would see Rank, which is 74 percent owned by Malaysian-based gambling group Guoco, merge its 35 Grosvenor Casinos chain with the 24 casinos owned by Gala, making it Britain's biggest operator.
According to reports, talks involving the two companies were at an advanced stage and could be completed in time for Rank’s interim results on 9 February.