Andre Berto was #49 of Floyd Mayweather’s 49 victorious boxing matches. Floyd won all 49 of them.

In an interview over a year later, Berto shared something he noticed about Floyd during the fight, actually in-between rounds.

Floyd watches you the whole time between rounds. Just watching you, looking for any weakness or signs of fatigue. Any injury, any small thing he can take advantage of. He was always paying attention.

The best are always paying attention, even when you think they’re not. Look over your shoulder — someone’s watching you right now.