King & Wood Mallesons has held talks with Morgan, Lewis & Bockius about a global tie-up, a source briefed on the matter told London-based Legal Week.

The discussions took place within the last few months and involved the top leadership at both firms, the source said. One option on the table was creating a combined entity using a Swiss verein structure, although the recent resignation of King & Wood Mallesons funds partner Michael Halford in London has caused talks to break down and it remains unclear whether they are continuing in any capacity.