Roger Federer crushes Filip Krajinovic in Indian Wells last 32

The Swiss world number one - who needs to reach the semi-finals to protect his ranking - won six out of 15 games to love, hitting 24 winners to six by his opponent.

20-times Grand Slam winner Federer is chasing a sixth title at the event, and will take some stop judging by the manner in which he swatted aside his 26-year-old opponent in only 58 minutes.

"My level was good. Filip's wasn't so good and then things go quickly," Federer told Sky Sports in a post-match interview.

"He hasn't got the biggest serve out there so you get a lot of looks to break and when you have momentum on your side - not only serving but from the baseline, things go very quickly.

"It was a good match for me - I expected it to be much tougher and I know Filip can play much better so I just tried to stretch the lead and I was able to mix stuff up with the slice, drop shot and the spins and he really struggled today."

The Australian Open champion - who is 14-0 in 2018 - meets Jeremy Chardy of France on Tuesday for a quarter-final place.