The private equity fund Bain Capital has a ton of deal work to go around, which perhaps tempers what could be a fierce competition between Kirkland & Ellis and Ropes & Gray for the title of Bain’s go-to firm.

Both firms have scored lead roles on several recent multibillion-dollar Bain deals, and this time around it’s Kirkland’s turn. The firm joined Weil, Gotshal & Manges in advising Bain and Advent International in their $3.2 billion acquisition of the Royal Bank of Scotland’s payment-processing unit, according lawyers who worked on the deal.