"I'm getting there. I have such a long way to go", Serena said.
"She looked like she never lost a step", Venus said of her younger sister. "I would prefer to play someone else, anybody else, literally anybody else, but it has to happen now".
Serena, unseeded in the wake of her long layoff, admitted she would have preferred not to come up against her sister so soon in the draw.
Venus in an earlier match had beaten Romania Sorana Cirstea 6-3 6-4.
And the 36-year-old backed that up with a battling display, which lasted nearly two hours against the spirited Dutchwoman, despite tallying 34 unforced errors.
Defending champion Elena Vesnina dropped the first set before she charged back t o life to overpower American Catherine Bellis 2-6 6-1 6-1. Since reaching the US Open final previous year, Keys has gone just 5-6 and last lost 3 of her last 4.
The 26-year-old Bulgarian No. 1 has never made it past the third round in seven appearances.
David Silva service at Stoke sends Manchester City closer to title
City left for the airport after the Stoke game with a break in the club owner's homeland awaiting them. The duo were back in the starting line-up after injury and performed as if they'd never been away.
Williams started with a love hold but the veteran was broken in the third game when she sloppily netted a forehand.
Fans accused the siblings and their father Richard of being duplicitous, leading to Serena being booed during her finals encounter against Kim Clijsters.
Whether it be her inability to smile during a competition, or her visceral reactions whenever she scores a point, (or oftentimes win) Williams has merited the ire of many in the sports world and online. "It definitely wasn't easy but it was good".
The second was equally hard fought, the duo trading two breaks each before Williams got a third crucial break at 5-5. I really abhor every time we play, but I do enjoy the battle when I'm out there. "When she's missing, it's not by much". Riding on her momentum, the Dutch had the golden opportunity to extend her lead but failed to convert her chances as Williams sent in several well-placed serves to lessen the deficit.
The new mom is aiming to become the first woman to win three singles titles in Indian Wells, adding to her trophies from 1999 and 2001. "I'm just out here on this journey and doing the best I can".
She is not yet in prime form, not yet in prime shape, but in her first two matches she has proved she still has staying power, coming to the net effectively, something she appears to be emphasizing in this comeback, and playing the crucial points with trademark intensity.