(Reuters) - AC Milan have signed midfielder Tiemoue Bakayoko from Chelsea on a two-year loan with an option to make the move permanent, the clubs said on Monday.

The 27-year-old Frenchman moved to Chelsea in 2017 but failed to establish himself as regular, spending much of his time out on loan including a previous stint at Milan during the 2018-19 season when he made 42 appearances in all competitions.