Roger Federer gets himself out of of a spot of bother.
Back-to-back wins over Kerber for Andreescu.
David Ferrer sends Alexander Zverev packing.
Early end to Miami Open for Serena Williams.
LTA determined to open up access to tennis.
It's a star-studded Saturday in Miami.
Strong WTA field emerging in Miami.
Thiem fails to make Sunshine Double challenge.
Williams admits to digging deep.
Serb cruises into round three.