Entain today said it has informed the suitor that “it believes that the proposal significantly undervalues the company and its prospects.”
Entain’s board has asked MGMRI to provide additional information in respect of the strategic rationale for a combination.
If a deal does sign, it would be the second major transaction in the sector in recent months, after US casino operator Caesars Entertainment agreed to buy William Hill for £2.9 billion.
Sports betting in the US has been growing rapidly.