The Boston Celtics and Washington Wizards have emerged as frontrunners to sign Al Horford.
Horford is expected to make a final decision Saturday evening.
The Atlanta Hawks agreed to terms with Dwight Howard on the first day of free agency, but they haven't ruled out re-signing Horford. The Hawks also re-signed Kent Bazemore.
Horford met with four teams Friday in Atlanta, including the Celtics and Wizards.
Horford pared down his options on Saturday morning.