Skadden, Arps, Slate, Meagher & Flom and Willkie Farr & Gallagher have picked up roles on the takeover of heavyweight payment processor Worldpay by Fidelity National Information Services (FIS), in a deal that will value the combined company at $43 billion.

Skadden’s team is advising Worldpay with a team led out of the firm’s New York office, headed up by corporate partners Peter Atkins and Sven Mickisch, co-head of financial institutions David Ingles, and compensation and benefits partner Joseph Penko. London M&A partner Scott Hopkins is also advising.