Al Horford has agreed to a four-year, $97 million deal with the Philadelphia 76ers. The deal also contains $12 million in bonuses tied to championships.

Horford opted out of his $30 million contract with the Boston Celtics and quickly broke off talks on a new deal. The final offer from the Celtics was for four seasons but contained less guaranteed money.

Horford joined the Celtics as a free agent in 2016.