Roger Federer is keeping the due date for his third child quiet but says it could potentially affect his playing schedule.
Federer and his wife, Mirka, have twin girls and announced that they were expecting another addition to the family this year.
"We'll see. It's clearly a top priority for me, being there and being supportive at one of the most incredible experiences," Federer told reporters ahead of Miami. "That's why I wouldn't want to miss it for the world.
"After that I will go back on tour when the time is right. We'll figure it out."