OPAP fruit machine, Credit: Flickr

U.S. firms Milbank and Latham & Watkins, alongside Greek firm Karatzas, are leading on the €3 billion ($3.4 billion) sale of Greece's largest gaming company.

Milbank is advising SAZKA Group, one of Europe's fastest-growing gaming companies, on its all-cash offer to acquire Athens-based gambling company OPAP.

The offer values the entire share capital of OPAP at more than €3.1 billion ($3.5 billion). It is, according to a statement from Milbank, the largest all-cash offer in Greece in more than 10 years.

Milbank's team is led by London capital markets partner Apostolos Gkoutzinis and corporate partner Mark Stamp, with support from London co-managing partner Suhrud Mehta, City partners Rebecca Marques and Clive Ransome, Frankfurt partner Mathias Eisen, and Munich antitrust partner Alexander Rinne.

Greek law firm Karatzas, meanwhile, is advising SAZKA with a team led by Athens-based partner Alexandros Metallinos.

Latham is advising the bookrunners involved in the deal, with a team led by corporate partners Brett Cassidy, Fritz Ernemann, Adrian Chiodo, Richard Butterwick and Stephen Kensell.

Latham also turned to local firm Potamitis Vekris for Greek law support.

According to people with knowledge of the deal, OPAP has yet to appoint legal advisers. OPAP did not respond to requests for comment.

SAZKA Group has a significant presence in southeastern Europe, with annual revenues of about €18 billion ($20 billion).

Milbank's Gkoutzinis joined the firm early last year from U.S. rival Shearman & Sterling. In 2013, he led on Piraeus Bank's €8.4 billion (9.4 billion) recapitalisation – one of the largest transactions in Greek financial history.