What is a lob in tennis?

A defensive lob goes high and deep to give you time. An offensive lob, often with topspin, is lower and faster and aims to land before the net player can turn and chase it.

Dustin Brown's lob, instant 1 of 8
TRACED · DUSTIN BROWN'S LOB
Dustin Brown's lob: eight instants traced from the footage, frame for frame. Hover or tap to flip.